The Math Sorcerer

Thursday, December 17, 2015

The Quaternion Group

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Definition of the Symmetric Group

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Proof that f(x) = 1/x is Continuous on (0, infinity) using Delta-Epsilon

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Prove the function f:Z x Z → Z given by f(m,n) = m + n - 3 is Onto(Surje...

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Prove the function f:Z^+ → Z given by f(n) = (-1)^n * n is Injective(one...

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Prove that f(x) = sqrt(|x|^3) is Differentiable at x = 0

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Prove that W = {(x_1,...,x_n)| sum(x_i) = 0} is a Subspace of the Vecto...

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Prove the function f:Z x Z → Z given by f(m,n) = 2m - n is Onto(Surjective)

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Prove the Set of all Odd Functions is a Subspace of a Vector Space

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Proof that f(x) = x*|x| is Differentiable at x = 0

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Determine if W = {(a,b,c)| a = b^2} is a Subspace of the Vector Space R^3

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Introduction to Cycle Notation in the Symmetric Group

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Cycle Multiplication Example in the Symmetric Group S_4

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Determine if W is a Subspace of a Vector Space V Polynomial Example

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Cycle Multiplication Example in the Symmetric Group S_7

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Determine if W= {(a, b, c)| a ≤ b ≤ c} is a Subspace of the Vector Space...

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Multiplying Permutations in Array(Two-Line) Notation in the Symmetric Gr...

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Multiplication of Cycles in the Symmetric Group S_6

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Graph the Hyperbola (y + 2)^2/4 - (x - 1)^2/9 = 1

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Prove the Set of all Bounded Functions is a Subspace of a Vector Space

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Determine if W = {(a, b, c)| b nonnegative} is a Subspace of the Vector ...

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Converting Cycle Notation to Array(two-line) Notation in the Symmetric G...

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Determine if the Unit Sphere is a Subspace of the Vector Space R^3

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Writing a Permutation in the Symmetric Group S_5 in Cycle Notation

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Wednesday, December 16, 2015

Proving two Spans of Vectors are Equal Linear Algebra Proof

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Multivariate Limit of (x^4 + y^4)/(x^2 + y^2) using Polar Coordinates

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Limit of sqrt(x^2 + y^2)ln(sqrt(x^2 + y^2)) using Polar Coordinates and ...

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Multivariable Calculus Limit of y^2/(x^2 + y^2) as (x,y) approaches (0,0)

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Parametric and Symmetric Equations of a Line Parallel to v = (-2,-4,6) P...

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Solve the Nonlinear System x^2 + y^2 = 4, 2x^2 - 3y^2 = -12

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Equation of the Conic given the Length of the Major Axis, Eccentricity, ...

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Convert the Cylindrical Coordinate (2, pi/4, 8) into Rectangular Coordin...

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Equation of Conic with Center (0,0) Focus (4,0) and Eccentricity = 7/5

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Multivariable Calculus Limit of x^2y/(x^2 + y^2) using Polar Coordinates

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Solve the Nonlinear System of Equations 2x^2 - y^2 = 16, |x| = |y|

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Find the Equation of the Conic given the Eccentricity, Vertex, and Center

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Convert the Cylindrical Coordinates (4, pi/6, 3) to Rectangular Coordinates

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Multivariable Calculus Limit of (x - y - 1)/(sqrt(x - y) - 1) by Rationa...

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Determine if the Relation is a Function Example with Diagram

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Equation of Conic with Vertex (0, 2) Center (0, 0) and Eccentricity = 4/3

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Converting the Parametric Equations x = e^t and y = e^(-2t) to Rectangul...

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Tuesday, December 15, 2015

How to Convert Cylindrical Coordinates to Rectangular Coordinates

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Equation of Conic with Eccentricity = 1/2 Center (0,0) and Focus (2,0)

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Solve the Nonlinear System of Equations x^2 + y^2 = 4, 7x^2 + 7y^2 = 2

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Finding the Coterminal Angle of Least Positive Measure

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Limit of sin(x^2 + y^2)/(x^2 + y^2) using Polar Coordinates and L'Hopita...

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Multivariable Calculus The Limit of x/(x + y) as (x, y) approaches (0, 0)

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Parametric and Symmetric Equations given a Point and a Parallel Vector

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Equation of Conic with Eccentricity = 2/3 Focus (0,-1) and Center (0,0)

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Solve 2sin^2(x) + 3sin(x) + 1 = 0

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Find the Complement and Supplement of 45 Degrees

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Solve sin(x)*cot(x) - sin(x) = 0

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Find the Complement and Supplement of 70 Degrees

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Monday, December 14, 2015

Convert pi/3 to Degrees

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Write the Parametric Equations x = t - 1, y = (1/3)t^2 + 1 in Rectangula...

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Write the Parametric Equations x = t - 1, y = (1/3)t^2 + 1 in Rectangula...

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Find the Arc Length with r = 17cm and theta = 2pi/7

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Convert 7pi/4 to Degrees

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Find the Complement and Supplement of 40 Degrees

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Maclaurin Series for f(x) = e^(-x)

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Write the Parametric Equations x = ln(t), y = 3ln(t) in Rectangular Form

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Given Supplementary Angles Find the Angles

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Converting Radians to Degrees Example with pi/6

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Find the Area of the Sector with r = 17.2m and theta = pi/3

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Find the Area of the Sector with r = 17.2m and theta = pi/3

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Complement of Supplement of an Angle in Radians pi/7

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Equation of Conic with Eccentricity = 1 Focus (-3,0) and Vertex (0,0)

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Converting Degrees to Radians Example with 50 Degrees

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Write the Parametric Equations x = sqrt(t), y = t^4 - 1 in Rectangular Form

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Given Complementary Angles Find the Angles

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Angle of Least Positive Measure Coterminal with -pi/6

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Find the Complement and Supplement of an Angle in Radians pi/6

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Find the Equation of the Conic with Eccentricity = 1 Focus (0, 6) and Ve...

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Thursday, December 10, 2015

Proof that sum(sin(n)/n) Converges using Dirichlet's Test

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Proving a Function is a Linear Transformation F(x,y) = (2x + y, x - y)

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If Lambda is an Eigenvalue of A then Lambda^2 is an Eigenvalue of A^2 Proof

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System of Linear Equations with Invertible Coefficient Matrix has a Uniq...

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Finding all Real Eigenvalues of a 3 x 3 Matrix

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Determine if T is a Topology on X

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Proof that f(x) = x^2 is Uniformly Continuous on (0, 1)

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Two Topologies on X whose Union is not a Topology on X

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The Intersection of Topologies on X is a Topology on X Proof

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Monday, December 7, 2015

The Discrete Metric is a Metric Proof

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Sunday, December 6, 2015

Find the Quotient Group (Z_3 x Z_2)/({0} x Z_2) Example with Direct Product

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Finding the Subspace Topology Easy Example

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The Subspace Topology is a Topology Proof

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Removable and Nonremovable Discontinuities of f(x) = (x + 1)/(x^2 + 3x+ 2)

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Computing a Limit by Rationalizing (sqrt(x + 3) - sqrt(3))/x as x approa...

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Indefinite Integral of 3x*csc^2(7x^2) with u-substitution

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Wednesday, December 2, 2015

Prove W = {(a, b) | a = -b} is a Subspace of R^2

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Tuesday, December 1, 2015

Finding the Quotient Group Example with Integers

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Two Subspaces of R^2 whose Union is not a Subspace

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Determine if W is a Subspace of a Vector Space V

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Monday, November 30, 2015

Finding the Elements of the Quotient Group Klein Four-Group Example

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Sunday, November 29, 2015

The Derived Set of any set in the Discrete Topology is Empty Proof

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Finding the Interior, Exterior, and Boundary of a Set Topology

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Finding Closed Sets, the Closure of a Set, and Dense Subsets Topology

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Finding Limit Points and the Derived Set in a Topological Space

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Definition of a Topological Space

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Every p-group has nontrivial center Proof

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The Conjugacy Class Equation Proof

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The Number of Conjugates of g is the Index of the Centralizer of g in G ...

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The Conjugacy Class is of a is {a} iff a is in the Center of the Group P...

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Conjugacy is an Equivalence Relation on a Group Proof

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Logarithmic Differentiation Example y = (9 + x)^(3/x)

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Definite Integral of 81^(x/2) from -2 to 2

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How to Use the Mean Value Theorem for Integrals Example

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Indefinite Integral of x^8 + 5^(-x)

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Derivative of f(x) = log_8(x^2 - 5x) using the chain rule

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Indefnite Integral of (8^sin(x))*cos(x) with u-substitution

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Derivative of f(x) = log_9(sqrt(x^2 - 4)) using the chain rule

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Derivative of f(t) = 8^(4t)/t using the quotient and chain rule

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Derivative of f(x) = x*9^x

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Indefinite Integral of sec(3x)

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Average Value of f(x) = 4ln(x)/x over [1, e]

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Definite Integral of (1 + ln(x))^4/x from 1 to e

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Saturday, November 28, 2015

Indefinite Integral of cot(theta/3) with u-substitution

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Sketching the Graph of the Circle (x 2)^2 (y - 3)^2 = 4

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Friday, November 27, 2015

Calculus Area of Region Bounded by y = 5^x, y = 0, x = 0, x = 2

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Limit of sum( (1 + 4i/n)^3(8/n), i = 1,...,n ) as n approaches infinity

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Equation of the Tangent Line for y = 3ln((e^x e^(-x))/2) at (0,0)

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Thursday, November 26, 2015

Find c guaranteed by the Mean Value Theorem for f(x) = x^7 over [0, 7]

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Average Value and the value(s) of x for which the function equals it's a...

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Mean Value Theorem for Integrals value(s) of c for f(x) = 7sqrt(x) over ...

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Wednesday, November 25, 2015

Definite Integral with Absolute Value |2x - 7| from 0 to 7/2

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Definite Integral of (2t - 1)^5 from 0 to 5 with u-substitution

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Sunday, November 15, 2015

G is Abelian if the Quotient Group G/N is cyclic and N is contained in t...

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A Group G that is Isomorphic to a Proper Subgroup Proof

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Every Subgroup Contained in the Center is Normal Proof

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Every Subgroup of Index 2 is Normal Proof

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Saturday, November 14, 2015

Proving a Piecewise Function is Bijective and finding the Inverse

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Thursday, June 11, 2015

How to Prove the Squeeze Theorem for Sequences

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Intuitive Explanation of the Derivative and it's Definition Calculus

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Proof that f(x) = 1/x is not Uniformly Continuous on (0,1)

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Proof of Bernoulli's Inequality using Mathematical Induction

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Solve the Differential Equation dy/dt - y = 1, y(0) = 1 using Laplace Tr...

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Find the Inverse Laplace Transform of 2/s^4 + 3/s^7 - 4/s^8

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Inverse Laplace Transform of s/(s^2 + 5s + 6) using Partial Fractions Co...

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Solve the Quadratic Equation 3x^2 + 4x + 1 = 0 by Completing the Square

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Find the Laplace Transform of f(t) = sin(7t)cos(7t)

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Find the Inverse Laplace Transform of 1/s^5 - 1/s^4 + s/(s^2 + 81) - 3/(...

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Find the Inverse Laplace Transform of 7/(2 - 5s)

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Find the Inverse Laplace Transform of 5/s^3 + 7/s^4

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Find the Laplace Transform of f(t) = sin(3t)cos(2t)

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Inverse Laplace Transform with Partial Fractions Cover-Up Method

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Find the Inverse Laplace Transform of (4s - 6)/(s^2 + 16)

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Find the Inverse Laplace Transform of 1/(3s + 1)

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Find the Inverse Laplace Transform of 3/(s^2 + 64) + 2s/(s^2 + 81)

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Wednesday, June 10, 2015

Find the Inverse Laplace Transform of 1/s^2 - 10/s^6

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Find the Inverse Laplace Transform of 1/s^3 + 1/s^4 + 1/s^5

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Find the Inverse Laplace Transform of 1/s^3

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Find the Inverse Laplace Transform of 1/s^3

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Tuesday, June 9, 2015

Find the Laplace Transform of f(t) = cos^2(3t)

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Monday, June 8, 2015

Find the Laplace Transform of f(t) = sinh(5t)cosh(2t)

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Find the Laplace Transform of f(t) = 8t^2 + sin(5t)

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Find the Laplace Transform of f(t) = 4 + t + e^(-7t)

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Proof of De Morgan's Law for the Union of Two Sets

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Find the Differential Equation given the General Solution y = C_1 + C_2x...

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Solve the Homogeneous Differential Equation 3y'' + 2y' + y = 0

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Determining if Functions are Linearly Independent or Dependent using the...

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Find the Differential Equation given the General Solution y = C_1cos(6x)...

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Solving a Fifth Order Linear Homogeneous Differential Equation

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Find the Differential Equation given the General Solution y = C_1 + C_2e...

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Homogeneous Linear Third Order Differential Equation y''' - 7y'' - 8y' = 0

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Find the Differential Equation given the General Solution y = C_1e^x + C...

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Homogeneous Linear Third Order Differential Equation y''' - 9y'' 15y' ...

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Monday, June 1, 2015

Convergence of Cesaro Means(Averages) Advanced Calculus Proof

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Proving a Sequence Converges Advanced Calculus Example

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Reverse Triangle Inequality Proof

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Proving an Equation has a Solution using the Intermediate Value Theorem

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Variation of Parameters y'' + y = sec(x)

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Proof that the Sequence (-1)^n Diverges using the Definition

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Proving Functions are Linearly Independent using the Wronskian

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Linearly Independent Functions with Wronskian Equal to Zero

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Solve the Homogeneous Differential Equation y'' + 36y = 0

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Find a Harmonic Conjugate of u(x, y) = sin(x)*cosh(y)

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Sunday, May 31, 2015

Advanced Calculus

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How to Prove a Function is Uniformly Continuous

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The Limit of a Sequence is Unique Proof

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The Dirichlet Function is Nowhere Continuous - Advanced Calculus Proof

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Find a Harmonic Conjugate of u(x, y) = y

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The Zero of a Product of Polynomials Complex Analysis Proof

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Graph and Domain of the Function f(x) = ln(x)/log(x)

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Integral of x^2/(1 + x^2)^2 Trigonometric Substitution

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The Integral of x*arcsin(x) Trigonometric Substitution

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Trigonometric Substitution Integral of 1/(x*sqrt(9x^2 + 64))

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Trigonometric Substitution the Integral of sqrt(1 - x)/sqrt(x)

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Integral of e^x*sqrt(1 - e^(2x)) using Trigonometric Substitution

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Integrate sqrt(16x^2 + 25)/x^4 using Trigonometric Substitution

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Integral of 1/(49 - x^2)^(3/2) using Trigonometric Substitution

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Integral of sqrt(64 - 4x^2) using Trigonometric Substitution

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Trigonometric Substitution the Integral of sqrt(49 - x^2)/x

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Trigonometric Substitution the Integral of sqrt(x^2 - 16)/x

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Solving an Equation with the Square Root Property Easy Example

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Tabular Integration the Integral of x*sin(x)

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Integrating using the Tabular Method the Integral of x^2*cos(x)

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Tabular Integration the Integral of x*e^(-6x)

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Saturday, May 30, 2015

Integral of Exponential Function e^(bx) using Substitution

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Expand ((1/2)x - 3y)^4 using Pascal's Triangle

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Find the Derivative of g(x) = e^(cosh(x))

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Determine if the Point is a Solution to the System of Equations Easy Exa...

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Friday, May 29, 2015

Tabular Integration the Integral of 10x^3*sin(x)

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Integration by Parts the Integral of t*ln(t + 5)

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Tabular Integration the Integral of x^3*e^(2x)

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Integration by Parts the Integral of cos(ln(x))

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Integration by Parts the Integral of x*arctan(x)

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Integration by Parts the Integral of arcsin(x)

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Tabular Integration the Integral of 9x/e^(x)

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Integrating with the Tabular Method x*cos(5x)

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Integration by Parts the Integral of e^(4x)*cos(3x)

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Integration by Parts the Integral of x^4*ln(x)

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Solving the Equation x^2 + 4x - 7 = 0 by Completing the Square

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Calculus Tabular Integration Example x^2(x - 2)^(3/2)

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Thursday, May 28, 2015

How to find a Harmonic Conjugate Complex Analysis

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Identity with the Complex Exponential - Complex Analysis Proof

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The Complex Exponential Function f(z) = e^z is Entire Proof

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How to find All Values of the Complex Logarithm Example

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Compute all values of the Complex Logarithm log(i)

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Wednesday, May 27, 2015

Computing the Value of Log(-i) Complex Analysis

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Tuesday, May 26, 2015

A Function that is Nowhere Analytic but Complex Differentiable Proof

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Computing all values of the Complex Logarithm log(1 - i)

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Argument and Polar Form of a Complex Number Example and Explanation

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Solving the Quintic Equation z^5 + 32 = 0 - Complex Analysis

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The Most General Harmonic Polynomial of the Form ax^2 + bxy + cy^2

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Verifying Laplace's Equation for a Complex Valued Function

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How to Find the Argument and Polar Form of a Complex Number

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Monday, May 25, 2015

How to Prove a Function is Entire - Complex Analysis

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How to find the Potential Function in a Conservative Vector Field

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Calculus Limit with Difference of Cubes Formula

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Inverse of a 2 x 2 Matrix with Formula

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Inverse of a 2 x 2 Matrix with Formula

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Evaluate the Algebra Expression Example

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How to Convert Fahrenheit to Celsius

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Write the Expression Without Absolute Values Example

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How to Create a Random Sample using StatCrunch

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How to Create a Scatter Plot in Statcrunch

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Computing the P-Value using the Test Statistic and StatCrunch in a Right...

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Computing the P-Value using the Test Statistic and StatCrunch in a Right...

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Critical Value using StatCrunch for a Left Tailed Hypothesis Z-Test

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Critical Value using StatCrunch for a Right Tailed Hypothesis Z-Test

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How to use the Poisson Calculator in StatCrunch to Compute Probabilities

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How to Create a Pareto Chart in StatCrunch

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How to Find the Mode in StatCrunch

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Computing the P-Value using the Test Statistic in a Left Tailed T-Test w...

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How to Create a Dot Plot in StatCrunch

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How to use StatCrunch for Combinations

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How to use the Binomial Calculator to Compute Probabilities in StatCrunch

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Critical Values for a Two Tailed Hypothesis T-Test in StatCrunch

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Confidence Interval for the Mean using StatCrunch and Z-Stats

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Z-Stats Confidence Interval for the Mean Using StatCrunch

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T-Stats Confidence Interval for the Mean using StatCrunch

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Sample Size for a Confidence Interval for a Mean using StatCrunch

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Confidence Interval for a Population Proportion using StatCrunch

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Critical Values for a Two Tailed Hypothesis Z Test using StatCrunch

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Confidence Interval for a Mean using T and StatCrunch

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Sample Size for a Confidence Interval for a Proportion in StatCrunch

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P-Value and Test Statistic for a Two Sample Hypothesis T Test using Stat...

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Confidence Interval for a Proportion in StatCrunch

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StatCrunch Normal Probability Calculator Example

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How to find Percentiles with the Normal Distribution in StatCrunch

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StatCrunch Probability with Normal Distribution and Central Limit Theore...

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How to use StatCrunch for Permutations

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How to Compute Probabilities with the Normal Calculator in StatCrunch

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P-value and Test Statistic for Hypothesis Test with Two Proportions in S...

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StatCrunch Normal Probability Problem

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Critical Value for a Left Tailed Hypothesis T-Test using StatCrunch

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P-value and Test Statistic for a One Sample Hypothesis Test with T in St...

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StatCrunch Normal Probability Harder Example

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Cut-off Value with Statcrunch and Normal Distribution

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Computing the P-Value using the Test Statistic in a Left-Tailed T Test i...

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Permutations in StatCrunch Example

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Pie Chart in Statcrunch

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StatCrunch Normal Probability Example

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Confidence Interval for a Percentage Using StatCrunch

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P-value and Test Statistic for a Two Sample Z Hypothesis Test in StatCrunch

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Confidence Interval for Two Means using T and Statcrunch

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Confidence Interval for Two Proportions in StatCrunch

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Sunday, May 24, 2015

Cut-off Value in Statcrunch using the Normal Distribution

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Computing Normal Probabilities in StatCrunch Easy Example

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How to find Unit Vector Orthogonal to other Vectors

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Using Calculus and Hooke's Law to Compute Work Harder Example

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If a Polynomial has a Zero of Order m, it's Derivative has a Zero of Ord...

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Center of Mass One Dimensional Case Example and Explanation

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Center of Mass(Center of Gravity) Two Dimensional Case

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StatCrunch

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Stemplot(Stem and Leaf Display) in StatCrunch

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Mean, Standard Deviation, and Variance in StatCrunch

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Least Squares Line, Linear Correlation Coefficient, and Coefficient of ...

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Finding Percentiles using StatCrunch

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Coefficient of Variation in StatCrunch

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Boxplot and Five Number Summary in StatCrunch

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Saturday, May 23, 2015

How to Use Hooke's Law for Springs and Calculus to Compute Work

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Calculus Computing Work using Hooke's Law for Springs Easy Example

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Center of Mass Explanation and Example Point Masses on the x-axis

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Disk, Washer, and Shell Method

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Determine if the Vector Field F(x, y) = (2y/x)i - (x^2/y^2)j is Conserva...

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Shell Method Volume of Solid y = 4 - x^2, y = 0, x = 0 about y-axis

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Shell Method Volume of Solid x + y = 4, y = x, y = 0 about x-axis

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Shell Method Volume of Solid y = (x - 1)(x - 3)^2, y = 0, about y-axis

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Disk(Washer) Method Volume of Solid y = x, y = 3, x = 0 about y = 4

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Disk(Washer) Method Volume of Solid y = 2x^2, y = 0, x = 2, about y-axis

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Friday, May 22, 2015

Shell Method Volume of Solid y = -x + 2, x = 0, y = 0, about x = 2

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Disk Method Volume of the Solid y = sqrt(16 - x^2), x = 0, y = 0, about ...

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Volume of Solid using Disk Method y = 4 - x^2, x = 0, y = 0 about x-axis

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Homogeneous Differential Equation (x - y)dx + xdy = 0

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How to Write a Complex Number in Trigonometric(Polar) Form

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How to Determine the End Behavior of a Polynomial Function

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How to use the Horizontal Line Test

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Write the Complex Number -4i in Trigonometric(Polar) Form

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Multiplying Complex Numbers in Polar(Trigonometric) Form [6cis(2pi/3)]*[...

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Write 3i in Polar(Trigonometric) Form

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Solving x^2 + 4x + 3 = 0 by Factoring

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Vertex and Axis of Symmetry of f(x) = -2(x + 4)^2 - 11

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Thursday, May 21, 2015

Integration with Inverse Trigonometric Functions

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Determine if the Vector Field F(x,y) = 5y^3i + 15xy^2j is Conservative

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Write -2 in Polar(Trigonometric) Form

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Write -2 in Polar(Trigonometric Form)

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How to Find the Vertex and Axis of Symmetry of a Parabola

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Determine the End Behavior of f(x) = 2x^6 + x^5 - x^2 + 2010

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How to Compute the Cross Product of Vectors

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Determine if F(x, y) = (1/(xy))(yi - xj) is a Conservative Vector Field

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How to find the Modulos(Magnitude) of a Complex Number

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Wednesday, May 20, 2015

How to use the Vertical Line Test

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How to Divide using Synthetic Division

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Cramer's Rule Example

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Tuesday, May 19, 2015

How to Divide Complex Numbers in Trigonometric(Polar) Form

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How to Graph an Absolute Value Function and Find Intercepts

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Sunday, May 17, 2015

How to Prove a Set is a Group

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Every Nonzero Prime Ideal in a Principal Ideal Domain is Maximal Proof

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The Conjugation Map is an Automorphism Proof

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Every Finite Integral Domain is a Field Proof

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Saturday, May 16, 2015

A Commutative Ring with 1 is a Field iff it has no Proper Nonzero Ideals...

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A Ring is Commutative iff (a - b)(a + b) = a^2 - b^2 Proof

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Idempotent Elements in an Integral Domain Proof

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Inverse of 3 x 3 Matrix Example

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Table Probability with Addition Rule

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Matrix Multiplication Example

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Equation of Tangent Line to f(x) = sinh(9 - x^2) at (3, 0)

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Determinant of a 3 x 3 Matrix Using Cofactor(Laplace) Expansion

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Derivative of f(x) = sinh(cosh(tanh(x/2)))

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Limit as x approaches zero of sin(3x)/(2x)

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First Derivative Test Relative Extrema of f(x) = arctan(x) - arctan(x - 5)

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Friday, May 15, 2015

Every Boolean Ring is Commutative

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Every Boolean Ring is of Characteristic 2

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Triangle Inequality for Real Numbers Proof

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Linear Differential Equation cos(x)dy/dx sin(x)y = 1

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Thursday, May 14, 2015

Exact Differential Equation (tan(x) - sin(x)sin(y))dx + cos(x)cos(y)dy = 0

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Wednesday, May 13, 2015

Solving the Separable Differential Equation dP/dt = P^2 - P

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Integral of 1/sqrt(-x^2 - 4x) by completing the square

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Factoring Sum of Cubes x^3 + 27

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Domain of Natural Logarithm Function f(x) = ln(x + 2)

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Factor by Grouping x^3 + x^2 - 2x - 2

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Factoring Difference of Cubes x^3 - 8

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Antiderivative of 4/(xsqrt(16 - (lnx)^2)) using Inverse Sine

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Antiderivative of t/(t^4 + 9) using inverse tangent

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Integral of sec^2(x)/sqrt(1 - tan^2(x)) using the arcsine function

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Integral of e^(2x)/(81 + e^(4x)) using the arctangent function

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Integral of (x - 4)/((x 2)^2 16) using the Inverse Tangent

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Tuesday, May 12, 2015

Integral of (x + 5)/sqrt(16 - (x - 4)^2) using Inverse Sine

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Indefinite Integral of sinx/(6 + (cosx)^2) using Inverse Tangent

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Indefinite Integral of 5t/sqrt(1 - 25t^2) using arcsine

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Indefinite Integral of 1/(81 + (x - 2)^2) using arctangent

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Indefinite Integral of 25/(1 + 25x^2) using arctangent

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Indefinite Integral of 1/sqrt(13 - x^2)

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Saturday, May 2, 2015

Every Convergent Sequence is Cauchy Proof

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Every Cauchy Sequence is Bounded Proof

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Friday, May 1, 2015

How to Write a Delta Epsilon Proof

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Linear Algebra Determinant Proof det(A^(-1)) = (detA)^(-1)

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Saturday, April 11, 2015

Laurent Series Harder Example

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Thursday, January 22, 2015

Proving a determinant function is surjective(onto)

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Tuesday, January 6, 2015

Inverse Image(Preimage) of Union of Sets Proof and Explanation

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Optimization Maximum Revenue with Price Reductions

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