1. Trig Functions – Part 2 33 22 11 Tangent & Cotangent Identities Pythagorean Identities Practice Problems

2. Tangent & Cotangent Identities 2

3. Pythagorean Identities 3

4. Signs of Trigonometric Functions 4

5. Quadrant Containing Q Positive FunctionsNegative Functions IAllNone IISine, CosecantCosine, Secant, Tangent, Cotangent IIITangent, CotangentSine, Cosecant, Cosine, Secant IVCosine, SecantSine, Cosecant, Tangent, Cotangent 5

6. Example 6

7. Another Example 7

8. Proof Example 8

9. Proof Example (Cont.) 9

10. Verifying an Identity Example Verify the following identity by transforming the left- hand side into the right-hand side. 10

11. Verifying an Identity Example (Cont.) 11

12. Practice Problems  Page 426 Problems 35-53 odd 12