1. Trigonometric Identities
Honors Advanced Algebra 2 with Trigonometry
Mrs. Stacey

2. Essential Question Essential Vocabulary
How do you simplify trigonometric expressions using identities?
Essential Vocabulary
Identity
Reciprocal Identities
Pythagorean Identities

3. Trigonometric Identities
Identity: An equation that is always true for defined values of x.
Examples…
Reciprocal Identities
Pythagorean Identities
Tangent/Cotangent Identities

4. The Reciprocal Identities

5. Tangent & Cotangent

6. The Pythagorean Identities

7. Working with Identities
We can use these identities to simplify expressions and to verify other identities.

8. Homework: Trigonometric Identities