• #### Symmetry of Graphs: Odd and Even Functions - Problem 3

##### Math›Precalculus›Introduction to Functions
How to determine whether an odd function times an even function, or an odd function divided by an odd function, is even or odd.
• #### Symmetry of Graphs: Odd and Even Functions - Concept

##### Math›Precalculus›Introduction to Functions
How to recognize the graph of an even or odd function.
• #### Symmetry of Graphs: Odd and Even Functions - Problem 2

##### Math›Precalculus›Introduction to Functions
How to prove whether a function is even or odd.
• #### Symmetry of Graphs: Odd and Even Functions - Problem 1

##### Math›Precalculus›Introduction to Functions
How to prove whether a function, f(x) = x - 0.04*x^3, is even or odd.
• #### Integer Power Functions - Concept

##### Math›Precalculus›Polynomial and Rational Functions
How we identify odd power functions and even power functions.
• #### Trigonometric Identities - Problem 2

##### Math›Trigonometry›Trigonometric Functions
How to use the unit circle to show that cosine is an even function, and sine and tangent are odd functions.
• #### Trigonometric Identities - Problem 2

##### Math›Precalculus›Trigonometric Functions
How to use the unit circle to show that cosine is an even function, and sine and tangent are odd functions.
• #### Transforming the Cotangent Graph - Concept

##### Math›Precalculus›Trigonometric Functions
How graph the cotangent function using five key points.
• #### Transforming the Cotangent Graph - Concept

##### Math›Trigonometry›Trigonometric Functions
How graph the cotangent function using five key points.
• #### Polynomial Function - Problem 9

##### Math›Algebra 2›Polynomials
Write a polynomial with given real zeros, considering even or odd multiplicity, assuming the "a" value is one.
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• #### The Sine Addition Formulas - Problem 2

How to derive the sine of a difference formula and use it to find the sine of an angle.