• #### Trigonometric Identities - Problem 1

##### Math›Trigonometry›Trigonometric Functions
How to use the Pythagorean identity to find cosine and tangent when sine is known.
• #### Using Trigonometric Identities - Problem 2

##### Math›Precalculus›Trigonometric Functions
How to simplify a trigonometric expression using a Pythagorean identity and algebra.
• #### Trigonometric Identities - Problem 1

##### Math›Precalculus›Trigonometric Functions
How to use the Pythagorean identity to find cosine and tangent when sine is known.
• #### Using Trigonometric Identities - Problem 2

##### Math›Trigonometry›Trigonometric Functions
How to simplify a trigonometric expression using a Pythagorean identity and algebra.
• #### The Reciprocal Trigonometric Functions - Problem 2

##### Math›Trigonometry›Trigonometric Functions
How to compute all six trigonometric functions at q = -7?/6.
• #### The Reciprocal Trigonometric Functions - Problem 3

##### Math›Trigonometry›Trigonometric Functions
How to compute all six trigonometric functions at q given sec q.
• #### The Reciprocal Trigonometric Functions - Problem 2

##### Math›Precalculus›Trigonometric Functions
How to compute all six trigonometric functions at q = -7?/6.
• #### The Reciprocal Trigonometric Functions - Problem 3

##### Math›Precalculus›Trigonometric Functions
How to compute all six trigonometric functions at q given sec q.
• #### The Reciprocal Trigonometric Functions - Problem 1

##### Math›Trigonometry›Trigonometric Functions
How to compute all six trigonometric functions at q = 7*pi/4.
• #### The Reciprocal Trigonometric Functions - Problem 1

##### Math›Precalculus›Trigonometric Functions
How to compute all six trigonometric functions at q = 7*pi/4.
• #### Using Trigonometric Identities - Problem 3

##### Math›Trigonometry›Trigonometric Functions
How to prove an identity using a Pythagorean identity and algebra.
• #### Using Trigonometric Identities - Problem 3

##### Math›Precalculus›Trigonometric Functions
How to prove an identity using a Pythagorean identity and algebra.
• #### Using Trigonometric Identities - Problem 1

##### Math›Precalculus›Trigonometric Functions
How to prove an identity using a Pythagorean identity and algebra.
• #### Using Trigonometric Identities - Problem 1

##### Math›Trigonometry›Trigonometric Functions
How to prove an identity using a Pythagorean identity and algebra.
• #### Trigonometric Identities - Problem 3

##### Math›Trigonometry›Trigonometric Functions
How to use the unit circle to show that sine and cosine have period 2*pi, and tangent has period pi.
• #### Trigonometric Identities - Problem 3

##### Math›Precalculus›Trigonometric Functions
How to use the unit circle to show that sine and cosine have period 2*pi, and tangent has period pi.
• #### Graphing the Reciprocal Trigonometric Functions - Problem 1

##### Math›Trigonometry›Trigonometric Functions
How to graph y = sec q.
• #### Graphing the Reciprocal Trigonometric Functions - Problem 2

##### Math›Trigonometry›Trigonometric Functions
How to graph y = csc q.
• #### 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.
• #### Graphing the Reciprocal Trigonometric Functions - Problem 2

##### Math›Precalculus›Trigonometric Functions
How to graph y = csc q.