The Math Sorcerer
Monday, December 29, 2014
Derivation of arcsinh(x) the Inverse Hyperbolic Sine Function
Find the Hydronium Ion Concentration given the pH
Related Rates Revenue Word Problem
Find the Total Differential of the Multivariate Function f(x,y,z) = e^(x...
Find the pH given the Hydronium Ion and determine if Acidic or Alkaline
Find the Minimum and Maximum Usual Values
Total Differential of Multivariate Function f(x, y) = x^3y^4 + x^2y^3 + 12
Determining if a vector is a linear combination of other vectors
Related Rates Melting Snowball
Related Rates Melting Snowball
First Order Partial Derivatives of f(x, y) = ln(x^4 + y^4)
Indefinite Integral of 1/(1-sin(x))
Derivative of arcsin(x) derivation
Derivative of f(x) = sqrt(ln(x))
Find dy/dx given y^4 - x^2 = 2
Derivative of natural logarithm with chain rule example
Finding dy/dx at specified values
First Order Partial Derivatives of f(x,y) = x^4 6x^2y^2 2y^3 - 3x^2
Sunday, December 28, 2014
Optimization Maximum Profit Word Problem
Optimization Maximum Revenue Word Problem
Find the Cost Function given the Marginal Cost and Fixed Costs
Maclaurin Series of f(x) = sin(3x)cos(3x) using Identities
Time it takes to double your money Compound Interest
Demand Equation Find dp/dx and Interpret Word Problem
Midpoint of the line connecting (-2, 5) and (6, 7)
Midpoint of the line segment connecting (1, 3) and (4, 5)
Taylor Series for f(x) = e^x centered at c = pi using the definition
Maclaurin Series of 1/(1 + x)^4 using the Binomial Series
Indefinite Integral of 1/(1-cos(x))
Coefficient of Variation Example and Explanation
Related Rates Maximum Profit Word Problem
Maclaurin Series for e^(2x)
Maclaurin Series for xcos(2x)
Computing z-scores(standard scores) and comparing them
Saturday, December 27, 2014
Understanding z-scores(standard scores) as a measure of relative standing
Converges or Diverges? sum( (-1)^n n/ln(n + 1), n = 1, 2, ...)
Converges or Diverges? sum( (-1)^n/e^n, n = 1, 2, ...)
Maclaurin Series for sin(x^3)
Converges or Diverges? sum( (-1)^n (n + 1)/n, n = 1, 2, ...)
Calculus Infinite Limits xsec(x) as x approaches pi/2 from the right
Calculus Infinite Limits (4 + x)/(x - 2) as x approaches 2 from the right
Calculus Infinite Limits -3/(x - 1)^2 as x approaches 1 from the left
Calculus Infinite Limits 1/(x - 3) as x approaches 3 from the right
Friday, December 26, 2014
Parametric Equations and Calculus
Thursday, December 25, 2014
Frequency Table and Class Width Example
Monday, December 22, 2014
How to Prove a Set is a Subspace of a Vector Space
How to Prove a Function is Surjective(Onto)
Unit Tangent Vector for Vector-Valued Function
Super Fast Way to Find the Inverse Function
Integration with u-substitution the Antiderivative of (1/x^2)sin(1/x)
Convert the rectangular equation 3x - 2y = 11 into polar form
Graphing a hyperbola that opens left and right
Integration with u-substitution the antiderivative of sech^5(x)tanh(x)
Derivative of h(x) = 3^x * ln(x) using the product rule
Derivative of h(x) = 3^x * ln(x) using the product rule
Converting the polar equation r = 8/(cos(theta) + sin(theta)) into polar...
Listing the possible rational roots/zeros
Converting the polar equation r = -8csc(theta) into rectangular form
Converting the polar equation r = -6sin(theta) - 6cos(theta) into rectan...
Finding the z-score of x with the formula
Converting the polar equation r = sec(theta) into rectangular form
The Constant of Integration is ALWAYS Zero
Find x given the z-score, sample mean, and sample standard deviation
Converting the Polar Equation r = 3sin(theta) into Rectangular Form
Saturday, December 20, 2014
Sum of Harmonic Numbers Induction Proof
Group Theory Proof: If g^n = e then the order of g divides n
Direct Image of Intersection of Sets under an Injective Function Proof
Group Theory Proof: The order of x is the order of x inverse
Proof that if g o f is Injective(one-to-one) then f is Injective(one-to-...
Preimage(Inverse Image) Explanation and Intersection of Sets Proof
Matrix Powers Induction Proof (PDP^(-1))^n = PD^nP^(-1)
Equation of Tangent Line to Graph of arctan(xy) = arcsin(x + y) at (0,0)
Friday, December 19, 2014
Definite Integral of a Vector-Valued Function
Indefinite Integral of a Vector-Valued Function Example 2
Indefinite Integral of a Vector-Valued Function Example 1
Writing cos(arcsin((a - b)/c)) in Algebraic Form
Writing the Trigonometric Function sec(arctan(4x)) as an Algebraic Expre...
Finding the Gradient of a Multivariate Function Example 3
Finding the Gradient of a Multivariate Function Example 2
Gradient of a Multivariate Function Example 1
Second Derivative of Vector-Valued Function Example 2
Second Derivative of Vector-Valued Function Example 1
Derivative of Vector-Valued Function r(t) = (arctan(e^t), arccos(t^3), s...
Derivative of Vector-Valued Function r(t) = e^(3t)i + cos^2(4t)j + sqrt(...
Derivative of Vector-Valued Function r(t) = sqrt(t)i + (1 - t^3)j + sec(...
Limit of a Vector-Valued Function as t approaches Infinity
Limit of a Vector-Valued Function Example
Equation of the Sphere in Standard Form, Center, and Radius
Equation of Sphere given Endpoints of Diameter
Equation of Sphere with Radius 3 and Center (3, -1, 0)
Equation of Sphere with Radius 2 and Center (4, 2, -3)
Distance between Two Points in Space (-3, 2, 5) and (4, 0, 8)
Distance between Two Points in Space (3, 1, 4) and (2, -1, 3)
Dot Product of Vectors given Magnitudes and Angle between them
Angle between vectors u = i - 3j + k and v = 2i + 4j - k
Angle between Vectors u = (3, 1) and v = (2, -1)
Angle between Vectors u = (3, 1) and v = (2, -1)
Unit Vector in the Direction of v = (3, 2, 4) and Opposite of v
Vector with Magnitude 3 in the Direction of u = (1, 2, 3)
Vector with Magnitude 3 in the Direction of u = (1, 2)
Vector with Magnitude 4 in the Direction of u = (0, 3)
Unit Vector in Direction of v = (-1, 3)
Unit Vector in the Direction of v = (4, 7)
Determine if the Vectors are Orthogonal
Magnitude of the Vector v = (3, 0, 4)
Thursday, December 18, 2014
Magnitude of the Vector v = -2i + 3j + 4k
Magnitude of the Vector v = -2i + 3j + 4k
Magnitude of the Vector v = (3, -2, 1)
Magnitude of the Vector v = 2i - k
Magnitude of the Vector v = 2i + 3j
Dot Product of the Vectors u = 3i + 2j + 4k and v = -i + j
Dot Product of the Vectors u = (1, 2, 4) and v = (-3, -2, 0)
Dot Product of the Vectors u = (3, 6) and v = (-2, 4)
Dot Product of the Vectors u = (3, 6) and v = (-2, 4)
Inverse Image(Preimage) of Intersection of Sets Proof
Kernel of a Group Homomorphism is a Subgroup Proof
Wednesday, December 17, 2014
Complex Analysis Laurent Series Example
Laurent Series for f(z) = 1/(z z^2) for |z| greater than 1
Disk(Washer) Method Volume of Solid y = x, y = 0, x = 4 about x = 5
Principle of Mathematical Induction Inequality Proof Video
Derivative of a Constant Function is Zero Proof
Direct Image of Union of Sets Proof: f(A U B) = f(A) U f(B)
Laurent Series of f(z) = 1/(z + z^2) in the punctured unit disk
Cyclic Groups Proof: If x is a generator so is its inverse
Points at which Curve(Cycloid) is not Smooth
Tuesday, December 16, 2014
P-Test and Comparison Test for Integrals Four Examples
Dividing using Long Division (3x^2 + 2x + 5)/(x + 6)
Inverse of Exponential Function f(x) = ln(x - 4) + 2
Solving an Exponential Equation (1/8)^(x + 2) = 32^x
Solving an Equation with a Square Root x - 4 = sqrt(3x - 8)
Shell Method Volume of Solid y = x, y = 0, x = 4 about x = 5
Inverse of Logarithmic Function f(x) = 4log_3(x + 7) - 9
Inverse of Rational Function f(x) = (3x + 2)/(x - 9)
Inverse of Exponential Function f(x) = 2^(x - 6) + 8
Inverse of Logarithmic Function f(x) = 7log_3(x + 1) - 6
Solving 2x^2 - 3x + 1 = 0 using the Quadratic Formula
Finding a_n in a geometric sequence given a_3 and a_8
Finding a_n for a geometric sequence given the first four terms
Monday, December 15, 2014
Inverse of Rational Function f(x) = 2/(x - 3)
Inverse of Rational Function f(x) = 2/(x - 3)
Finding a_6 given a geometric sequence with a_4 and r
Tangent Lines given Parametric Equations
Improper Integral with Two Infinite Limits
Graphing a Rational Function
Concavity and Slope given Parametric Equations
Derivative of f(x) = 1/x Using the Limit Definition
Equation with Two Absolute Values
Proof that if g o f is Surjective(Onto) then g is Surjective(Onto)
Concavity and Parametric Equations Example
Graphing the Inverse Function of f(x) = sqrt(x + 6)
Finding a_1 and r in a geometric sequence given a_2 and a_7
Graphing a Piecewise Function
Arc Length Parametric Equations x = 2cos(t), y = 2sin(t) over [0, 2pi]
Find dy/dx given Parametric Equations x = sin^2(theta), y = cos^2(theta)
Equation of Line Passing through (1,-4) and Perpendicular to x = 4
Equation of Line Passing through (-5,7) and Perpendicular to y = -2
Equation of Line Passing Through (-1,4) and Parallel to x + 3y = 5
Combinations Problem Apples in a Crate
Sunday, December 14, 2014
Equation of Line Passing through (1,6) and Perpendicular to 3x + 5y = 1
Converting the Polar Equation r = cot(theta)csc(theta) Into Rectangular ...
Converting the Rectangular Equation 3x - y + 2 = 0 Into Polar Form
Converting the Rectangular Equation x^2 + y^2 = 4 into Polar Form
Solving an Equation with Negative Exponents
Limit of (e^x + x)^(3/x) L'Hopital's Example
Find dy/dx given Parametric Equations x = t^2, y = 7 - 6t
Converting the Rectangular Equation y^2 = 3x Into Polar Form
Saturday, December 13, 2014
Kernel of a Group Homomorphism is a Normal Subgroup Proof
Limit as x approaches zero of (x^2 + 3x)/x
Laurent Series of f(z) = 1/(z - 3) in the Region |z| greater than 3
Sunday, November 30, 2014
Relations, Cosets, Lagrange's Theorem
Second Isomorphism Theorem for Groups Proof
First Isomorphism Theorem for Groups Proof
If G is Cyclic so is G/H Proof
Direct Product of Normal Subgroups is Normal Proof
Groups of Prime Order p are Cyclic with p-1 Generators Proof
Proof that o(x) divides |G| if G is Finite
Proof of Lemma and Lagrange's Theorem
Cosets are Equivalence Classes Two Proofs
Equivalence Relation on a Group Two Proofs
Equivalence Classes Partition a Set Proof
Equivalence Relations Definition and Examples
A Group Homomorphism is Injective iff it's Kernel is Trivial Proof
Intersection of Two Normal Subgroups is Normal Proof
Saturday, November 29, 2014
Proof that f(x) = xg_0 is a Bijection
I is a Maximal Ideal iff R/I is a Field Proof
I is a Prime Ideal iff R/I is an Integral Domain Proof
Inverse Image of a Normal Subgroup Proof
Epimorphic Image of a Normal Subgroup Proof
Binary Operations More Examples Video
Half-Life Exponential Decay Word Problem
System of Equations with Three Equations and Three Variables
Inverse of Exponential Function
Finding the Equation of the Circle given the Center and a Point
Inverse of Rational Function Harder Example
Inverse Image of a Subgroup is a Subgroup Proof
Direct Image of a Subgroup is a Subgroup Proof
If G is Isomorphic to H then G is Cyclic iff H is Cyclic Proof
Binary Operations
If G is Isomorphic to H then G is Abelian iff H is Abelian Proof
The Symmetric Difference is Associative Proof Video
Associative Binary Operations and Examples Video
Definition of Binary Operation, Commutativity, and Examples Video
Average Rate of Change of a Function Video
Equation of a Line Given a Point and a Perpendicular Line
Finding the Inverse of the Rational Function f(x) = 5/x
Inverse of Cubic Function Intuitive Solution and Algebraic Solution
Friday, November 28, 2014
Finding the Inverse of the Linear Function f(x) = x + 2
Solving a Linear Equation with Fractions Example 3
Solving a Linear Equation with Fractions Example 2
Solving a Linear Equation with Fractions Example 1
Solving a Linear Equation Example 12
Solving a Linear Equation Example 11
Solving a Linear Equation Example 10
Monday, November 24, 2014
Tangent Lines of f(x) = x^3 Parallel to y = 12x + 7
Calculus Impact Velocity
Finding the Equation of the Parabola using Calculus
Find k such that y = 4x + 4 is tangent to f(x) = k*sqrt(x)
Sunday, November 23, 2014
Related Rates
Related Rates The Volume of a Sphere
Related Rates The Volume of a Cone
Related Rates The Volume of a Cube
Hyperbola with Foci (-9, 0), (9, 0) and Vertices (-4, 0), (4, 0)
Hyperbola with Foci (-3, 0), (1, 0) and Vertices (-2, 0), (0,0)
Hyperbola with Vertices (-6, 0), (6, 0) and Asymptotes y = +/- (4/3)x
Hyperbola with Vertices (0, 1), (0, -1) and Asymptotes y = /- (1/3)x
Linear and Rational Equations
Finding the Domain, Range, and Asymptotes from a Graph
Solving a Linear Equation Example 9
Solving a Linear Equation Example 8
Solving a Linear Equation Example 7
Solving a Linear Equation Example 6
Solving a Linear Equation Example 5
Solving a Linear Equation Example 4
Solving a Linear Equation Example 3
Solving a Linear Equation Example 1
Series Solutions Differential Equations y'' - y' = 0
Thursday, November 20, 2014
Extended Fundamental Theorem of Calculus
Wednesday, November 19, 2014
Arithmetic Sequences
Tuesday, November 18, 2014
How To Use Simpson's Rule
Monday, November 17, 2014
Derivative of x^x and x^(x^x)
Root Test For Infinite Series Examples
Definite Integral Using Limit Definition
Sunday, November 16, 2014
How To Use The Trapezoid Rule
Computing the Sums of Finite Series with Formulas
Computing Terms in a Recursive Sequence Fibonnaci Example
Computing Terms in a Recursive Sequence
Sum Of A Finite Series Example 3
Sum Of A Finite Series Example 2
Sum Of A Finite Series Example 1
Finding the first five terms of a sequence Example 4
Finding the first five terms of a sequence Example 3
Finding the first five terms of a sequence Example 2
Finding the first five terms of a sequence Example 1
How To Use The Change Of Base Formula For Logarithms
Condensing Using The Properties Of Logarithms Example 14
Condensing Using The Properties Of Logarithms Example 13
Condensing Using The Properties Of Logarithms Example 12
Condensing Using The Properties Of Logarithms Example 11
Condensing Using The Properties Of Logarithms Example 10
Condensing Using The Properties Of Logarithms Example 9
Condensing Using The Properties Of Logarithms Example 7
Condensing Using The Properties Of Logarithms Example 6
Condensing Using The Properties Of Logarithms Example 5
Condensing Using The Properties Of Logarithms Example 4
Condensing Using The Properties Of Logarithms Example 2
Condensing Using The Properties Of Logarithms Example 1
Condensing Using The Properties Of Logarithms Example 1
Expanding Using The Properties Of Logarithms Example 11
Expanding Using The Properties Of Logarithms Example 10
Expanding Using The Properties Of Logarithms Example 9
Expanding Using The Properties Of Logarithms Example 8
Expanding Using The Properties Of Logarithms Example 7
Expanding Using The Properties Of Logarithms Example 6
Expanding Using The Properties Of Logarithms Example 5
Expanding Using The Properties Of Logarithms Example 4
Expanding Using The Properties Of Logarithms Example 3
Expanding Using The Properties Of Logarithms Example 2
Expanding Using The Properties of Logarithms Example 1
Expanding Using The Properties of Logarithms Examples
Saturday, November 15, 2014
Separable Differential Equation Initial Value Problem
Monday, November 10, 2014
The Composition of Surjective(Onto) Functions is Surjective Proof
How To Find A Power Series By Differentiating
Sunday, November 9, 2014
Geometric Power Series And The Interval Of Convergence
How To Find The Interval And Radius Of Convergence
How To Find A Taylor Polynomial Using The Definition
How To Use The Ratio Test
Concavity and Inflection Points
Relative Extrema Using The Second Derivative Test
Calculus Limits at Infinity with Square Roots
Calculus Limits at Infinity Three Easy Examples
Saturday, November 8, 2014
How To Use Newton's Method
Calculus Solving a Differential Equation(Initial Value Problem)
Integration with u-substitution the Integral of (17 + 1/x)^6*(1/x^2)
Integration with u-substitution the Integral of (17 + 1/x)^6*(1/x^2)
Integration with u-substitution the Integral of sec^2(sin(3x))cos(3x)
Calculus The Integral of cos(x)/(1 - cos^2(x))
Integration with u-substitution the Integral of sqrt(tan(4x))sec^2(4x)
Integration with u-substitution the Integral of (x - 6)/sqrt(x^2 - 12x + 2)
Integration with u-substitution the Integral of 3x/(x^2 + 17)^5
Differentials A Simple Example
Sunday, November 2, 2014
How to Multiply Cycles in the Symmetric Group S_5
How To Use The Integral Test For Infinite Series
How To Use The P-Test For Infinite Series
Saturday, November 1, 2014
What Does It Mean For A Series To Converge?
Partial Fraction Decomposition
Proof that the Absolute Value Function is Not Differentiable at Zero
Find the Partial Fraction Decomposition 3x/((x + 1)(x^2 + 1))
Find the Partial Fraction Decomposition 2x/((x - 1)(x + 2)
How to Set Up the Partial Fraction Decomposition
Finding the Inverse of a 2x2 Matrix Examples
Friday, October 31, 2014
Finding a Limit Using L'Hopital's Rule sin(pix)/(x^2 - 1) as x approaches 1
Thursday, October 30, 2014
Finding a Limit Using L'Hopital's Rule (e^(x) - e^(-x))/x as x approache...
Finding the Limit Using L'Hopital's Rule tan(3x)/ln(1 + x) as x approach...
Wednesday, October 29, 2014
Finding a Limit Using L'Hopital's Rule (x - 8)/(x^(1/3) - 2) as x approa...
Solving the Logarithm Equation log(A) = log(B) - C*log(x) for A
Implicit Differentiation How to Find dy/dx: 1/x + 1/y = 3
Tuesday, October 28, 2014
Proof that Z x Z is not a cyclic group
Direct Products of Finite Cylic Groups Video 2
Sunday, October 26, 2014
Inverse Trigonometric Functions - Derivatives
Proof that (R, +) is not a Cyclic Group
The Number of Subsets of a Finite Set Binomial Theorem Proof
Inverse Trigonometric Derivatives f(x) = arcsec(x/2)
Inverse Trigonometric Derivatives f(x) = arcsin(e^x)
Inverse Trigonometric Derivatives f(x) = arcsin(sqrt(x))
Inverse Trigonometric Derivatives f(x) = sqrt(arcsin(x))
Inverse Trigonometric Derivatives f(x) = arccos(2x + 1)
Inverse Trigonometric Derivatives f(x) = arctan(lnx)
Inverse Trigonometric Derivatives f(x) = e^(arctan(x))
Inverse Trigonometric Derivatives f(x) = arctan(x^2)
Inverse Trigonometric Derivatives f(x) = arctan(4x)
Integration with u-substitution the Integral of (2 - 3x)^10
Solving the Exponential Equation 6^(x - 2) = 1
Solving the Exponential Equation e^(3x - 1) = (e^x)^2
Solving the Exponential Equation 2^(4 - x) = 8
Saturday, October 25, 2014
The Derivative of h(x) = 2*sec^2(x)*tan(x) Product Rule Example
Integration with u-substitution the Integral of sin(x)/(3 + cos(x))^2
Using Tabular Integration to Integrate x^4*e^(-x)
Solving the Logarithmic Equation (logx)^2 -6*logx = 7
Solving the Logarithmic Equation (lnx)^2 + 16 = 10*lnx
Finding a Limit Using L'Hopital's Rule (e^x - 1)/x as x approaches zero
Finding a Limit Using L'Hopital's Rule x*cot(x) as x approaches zero
Finding a Limit Using L'Hopital's Rule e^(-x)*ln(x) as x approaches infi...
The Improper Integral of e^(-x) from 0 to Infinity
Verifying a Trigonometric Identity cos(x)/(sin(x)cot(x)) = 1
Logarithmic Equations
Optimization The Rectangle with Maximum Area
Exponential Equations
Solving the Exponential Equation e^(2x) - 6*e^(x) + 8 = 0
Solving the Exponential Equation 5^(2x + 1) = 25
Solving the Logarithmic Equation log_2(log_2(x))) = 1
Solving the Logarithmic Equation r = p - k*ln(t) for t
Solving the Logarithmic Equation log(x) = sqrt(log(x))
Solving the Logarithmic Equation ln(ln(x)) = 0
Solving the Logarithmic Equation ln(2x) = 5
Verifying a Trigonometric Identity sin^2(x)/cos(x) = sec(x) - cos(x)
Friday, October 24, 2014
Verifying a Trigonometric Identity (1 - sin^2(x))/cos(x) = cos(x)
Verifying a Trigonometric Identity sin^2(x)*(1 + cot^2(x)) = 1
Verifying a Trigonometric Identity (cos(x) + 1)/tan^2(x) = cos(x)/(sec(x...
Verifying a Trigonometric Identity (tan^2(x) + 1)/sec(x) = sec(x)
Verifying a Trigonometric Identity cos^2(x)*(tan^2(x) + 1) = 1
Verifying a Trigonometric Identity tan(x)/sec(x) = sin(x)
Verifying a Trigonometric Identity cot(x)/csc(x) = cos(x)
Solving the Logarithmic Equation 5*ln(x) = 10
Thursday, October 23, 2014
The Center of a Subgroup of GL(2, C) Proof
Tuesday, October 21, 2014
The nth Term Test Explanation and Several Examples
How to Graph the Hyperbolic Cosine f(x) = cosh(x)
Monday, October 20, 2014
The Probability of Not Rolling a Sum of 8
The Probability of Rolling a Sum of 7
If a job has four applicants, how many ways to hire two of them?
The Super Formula for Infinite Geometric Series
Computing the Sum of an Infinite Geometric Series: Sum( 2*(1/3)^n, n = 3...
Sunday, October 19, 2014
Infinite Geometric Series Finding the Sum Two Examples
Finding the Laplace Transform of f(t) = sin(2t) + sin(4t) + cos(7t) + e^...
Finding the Laplace Transform of f(t) = 2cos(3t) - 8sin(2t) + cosh(5t) +...
Finding the Laplace Transform of f(t) = cos(4t) - sin(7t) + e^(-t)
Finding the Laplace Transform of f(t) = (t + 2)^3
Saturday, October 18, 2014
Finding the Laplace Transform of f(t) = e^(4t) * cosh(7t)
Finding the Laplace Transform of f(x) = cos^2(3x)
Finding the Laplace Transform of f(t) = sinh(3t) + cosh(8t)
Finding the Laplace Transform of f(t) = sinh(3t) + cosh(8t)
Finding the Laplace Transform of f(t) = 3 + 4t - 5t^2 + 7t^3
Finding the Laplace Transform of f(t) = 1 + t + t^2 + t^3
Finding the Laplace Transform of f(t) = 3 + 4t - 5t^2 + 7t^3
Finding the Laplace Transform of f(t) = sin(2t)*cos(2t)
Finding the Laplace Transform of f(t) = sin(2t)*cos(2t)
Finding the Laplace Transform of f(t) = e^t * sinh(t)
Finding the Laplace Transform of f(t) = 3t^2 - 5sin(2t)
Finding the Laplace Transform of f(t) = 1 + e^(3t)
Finding the Laplace Transform of f(t) = 1 + e^(3t)
Finding the Laplace Transform of f(t) = 1 + e^(3t)
Laplace Transforms
Finding the Laplace Transform of a Piecewise Function
Finding the Laplace Transform of f(t) = t^2 + 3t - 4
Systems of Equations
Systems of Equations Two Variables Two Equations Infinitely Many Solutions
Systems of Equations with Elimination Two Variables Two Equations Example 2
Systems of Equations with Elimination Two Variables Two Equations Example 2
Systems of Equations with Elimination Two Variables Two Equations Example 1
Friday, October 17, 2014
Systems of Equations with Substitution Two Variables Two Equations Examp...
Systems of Equations with Substitution Two Variables Two Equations Examp...
The Klein Four-Group
Calculus Proof of the nth Term Test for Divergence
Thursday, October 16, 2014
Calculus Limits at Infinity The Limit of 2/(4x + sin(x)) as x approaches...
Calculus Limits at Infinity The Limit of x/sqrt(x^2 - x) as x approaches...
Calculus Limits at Infinity The Limit of 8x^2/(x + 1) as x approaches ne...
Calculus Limits at Infinity The Limit of (4x^3 + x)/(5x^3 + 4) as x appr...
Calculus Limits at Infinity The Limit of (x^9 - 1)/(x^(10) + 4) as x app...
Wednesday, October 15, 2014
Calculus Limits at Infinity Rational Functions Four Easy Examples
L'Hopital's Rule
Integration by u-substitution
Tuesday, October 14, 2014
Proof that the Kernel of a Linear Transformation is a Subspace
Calculus Relative Maximum, Minimum, Increasing, Decreasing h(x) = (x + 4...
Rolle's Theorem
Monday, October 13, 2014
A Finite Nonempty Subset of G Closed under the Group Operation is a Subg...
Group Theory: The Center of a Group G is a Subgroup of G Proof
Group Theory: The Center of a Group G is a Subgroup of G Proof
Group Theory: Proof of the Formula for the Inverse of a Product
Finding value(s) of c in the Mean Value Theorem for f(x) = sin(x) on [-p...
Find the X-Values at which f(x) = sqrt(3)*x + cos(x) has a Horizontal Ta...
Can Rolle's Theorem be Applied to f(x) = tan(x) on [0, pi]?
Can Rolle's Theorem be Applied to f(x) = cos(x) on [-pi/2, pi/2]?
Can Rolle's Theorem be Applied to f(x) = |x + 2| on [2, 7]?
Sunday, October 12, 2014
Can Rolle's Theorem be Applied to f(x) = |x| - 9 on [-5,5]?
Absolute and Relative Extrema From a Graph Explained Intuitively
Finding the Eccentricity of the Conic Section x^2 - 4y^2 = 8
Finding the Eccentricity of the Conic Section 7x^2 + 16y^2 = 112
Finding the Eccentricity of the Conic Section 7x^2 + 16y^2 = 112
Finding the Equation of the Hyperbola Given the Center, Focus, and a Vertex
Finding the Equation of a Hyperbola Given the Vertices and a Point
Finding the Equation of a Hyperbola Given the Vertices, Asymptotes, and ...
Finding the Equation of a Hyperbola Example 1
Finding the Equation of an Ellipse Example 3
Finding the Equation of an Ellipse Example 2
Finding the Equation of an Ellipse Example 1
Finding the Equation of an Ellipse Given the X-Intercepts and Vertices
Finding the Center and Radius of the Circle 4x^2 - 24x + 4y^2 - 21y + 21...
Finding the Equation of the Parabola Given the Focus and Directrix
Finding the Focus, Directrix, and Axis of Symmetry of a Parabola Example 2
Finding the Focus, Directrix, and Axis of Symmetry of a Parabola Example 1
Ellipses: Tallest Truck that Fits through an Overpass Without Crashing
Finding the Center-Radius Form of a Circle Given the Center and a Point
Finding the Equation of the Parabola Given a Point and the Vertex
Finding the Equation of the Parabola Given the Focus and the Vertex Exam...
Finding the Equation of the Parabola Given the Focus and Vertex Example 1
Finding the Center-Radius Form of a Circle given the Center and a Tangen...
Finding the Center-Radius Form of a Circle the Given Endpoints of the Di...
Finding the Center-Radius Form of a Circle Example 3
Finding the Center-Radius Form of a Circle Example 2
Finding the Center-Radius Form of a Circle Example 1
Finding the Derivative of f(x) = (1 - 2x - x^2)/(x^4 - 1)
Finding the Derivative of f(x) = (7x^3 + 2x^2 + x)/x
Saturday, October 11, 2014
Finding the Derivative of f(x) = 5x^2cot(x) - 6csc(7x)
Finding the Derivative of f(x) = 5(1 - sin(x))/(2cos(x))
Finding the Derivative Practice Problems Example 1
Friday, October 10, 2014
Finding the Composition of Two Functions Example 1
Using a Graph to find Minimum and where the Function is Increasing and D...
Method of Undetermined Coefficients
Method of Undetermined Coefficients Solving y'' - y' = 3
Method of Undetermined Coefficients Explained Part 2
Method of Undetermined Coefficients Explained Part 1
Tuesday, October 7, 2014
If f and it's conjugate are analytic in a domain, then f is constant, Proof
The Indefinite Integral of (e^(-3x) + 3)^2
Monday, October 6, 2014
Integration with u-substitution the Integral of ln(2x)/x
Sunday, October 5, 2014
Integration with u-substitution the Integral of 5x*cos(x^2)
Trigonometric Integrals the Integral of cos^3(x)*sqrt(sinx)
Finding the Limit of (x^2 + 3)/cotx as x approaches zero
Trigonometric Integrals the Integral of sin(5x)*cos(4x)
Proof that 1 = -1
The Power of Calculus Proves 2 = 1
Trigonometric Substitution the Integral of x^2/sqrt(2x-x^2)
Wednesday, October 1, 2014
Principle of Mathematical Induction sum(1/(i(i + 1)), i = 1,..., n) = n/...
Trigonometric Integrals Powers of Secant and Tangent tan^4(x)
Tuesday, September 30, 2014
Trigonometric Integrals Powers of Secant and Tangent sec^4(2x)tan^4(2x)
Integration with u-substitution the Integral of 9x^2/sqrt(x^3 + 7)
Principle of Mathematical Induction (ab)^n = a^n*b^n Proof
Principle of Mathematical Induction The Sum of the First n Integers Proof
Monday, September 29, 2014
Inverse of a 2x2 Matrix Example
Solving a System of Equations with a Matrix Equation
Proof that the identity element of a group is unique
Proof that inverses in a group are unique
Proof that every convergent sequence is bounded
Proof of the formula for the sum of the first n integers
Calculus Product Rule Example 1
Calculus Chain Rule Example 1
Calculus Chain Rule Example 2
Calculus Chain Rule Example 3
Expanding using the Binomial Theorem
Finding a limit using the Squeeze Theorem
Series Convergence and Divergence Using The nth Term Test
Integration by Parts The Integral of lnx
Integration by Parts the Integral of arctanx
Finding the equation of the tangent line for f(x) = x^(coshx) at (1,1)
Every Cyclic Group is Abelian Proof
If x^2 = e for all x in G then G is an abelian group proof
Graphing a Piecewise Function and Finding the Domain and Range
Writing a Parabola in Vertex Form
Graphing an Absolute Value Function
Determine if the differential equation is exact Example 1
Determine if the differential equation is exact Example 2
Determine if the differential equation is exact Example 3
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