The Math Sorcerer

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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