1. Equivalent Function Relationships

2. Equivalent Function Examples
Find the equivalent expression for the following.

3. Trigonometric Identities
Remember the Pythagorean Theorem.
Let’s take another look at a Unit Circle.
P(x, y)
r = 1 y x

4. Working with Trigonometric Identities
Write each expression as a single term using
That looks a little confusing but it’s actually pretty easy.

5. Homework
Page 485:

6. Proving Trigonometric Identities

7. More Proving Trigonometric Identities

8. Homework
Page 488: Even Numbers