• #### Using the Sine and Cosine Addition Formulas to Prove Identities - Concept

How to use the sine and cosine addition formulas to prove the cofunction identities.
• #### Using the Sine and Cosine Addition Formulas to Prove Identities - Problem 1

How to use the sine and cosine addition formulas to prove the "add pi" identities.
• #### Using the Sine and Cosine Addition Formulas to Prove Identities - Problem 3

How to use the sine and cosine addition formulas to prove a difference formula for tangent.
• #### The Inverse Cosine Function - Problem 3

How to graph a simple transformation of y = cos^-1(x) + pi/2
• #### The Inverse Cosine Function - Problem 3

How to graph a simple transformation of y = cos^-1(x) + pi/2
• #### Using the Sine and Cosine Addition Formulas to Prove Identities - Problem 3

How to use the sine and cosine addition formulas to prove a difference formula for tangent.
• #### Graphs of the Sine and Cosine Functions - Problem 1

##### Math›Trigonometry›Trigonometric Functions
How to graph one period of y = sin q.
• #### Graphs of the Sine and Cosine Functions - Problem 1

##### Math›Precalculus›Trigonometric Functions
How to graph one period of y = sin q.
• #### Graphs of the Sine and Cosine Functions - Problem 2

##### Math›Precalculus›Trigonometric Functions
How to graph one period of y = cos q.
• #### Graphs of the Sine and Cosine Functions - Problem 2

##### Math›Trigonometry›Trigonometric Functions
How to graph one period of y = cos q.
• #### Find an Equation for the Sine or Cosine Wave - Problem 1

##### Math›Precalculus›Trigonometric Functions
How to identify the graph of a stretched and reflected sine curve.
• #### Find an Equation for the Sine or Cosine Wave - Problem 1

##### Math›Trigonometry›Trigonometric Functions
How to identify the graph of a stretched and reflected sine curve.
• #### Other Forms of the Cosine Double-Angle Formula - Problem 2

How to use the power reduction formulas to reduce cos4 x.
• #### Other Forms of the Cosine Double-Angle Formula - Problem 2

How to use the power reduction formulas to reduce cos4 x.
• #### Graphs of the Sine and Cosine Functions - Concept

##### Math›Trigonometry›Trigonometric Functions
How to define periodic functions.
• #### Graphs of the Sine and Cosine Functions - Concept

##### Math›Precalculus›Trigonometric Functions
How to define periodic functions.
• #### Transforming the Graphs of Sine and Cosine - Problem 1

##### Math›Trigonometry›Trigonometric Functions
How to graph a stretched sine function.
• #### Transforming the Graphs of Sine and Cosine - Concept

##### Math›Trigonometry›Trigonometric Functions
How the values of A and B affect the shape of the graph y = A sin(Bx).
• #### Transforming the Graphs of Sine and Cosine - Concept

##### Math›Precalculus›Trigonometric Functions
How the values of A and B affect the shape of the graph y = A sin(Bx).
• #### Transforming the Graphs of Sine and Cosine - Problem 1

##### Math›Precalculus›Trigonometric Functions
How to graph a stretched sine function.