The Math Sorcerer
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)
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