Trig Functions – Part Tangent & Cotangent Identities Pythagorean Identities Practice Problems

Tangent & Cotangent Identities 2

Pythagorean Identities 3

Signs of Trigonometric Functions 4

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

Example 6

Another Example 7

Proof Example 8

Proof Example (Cont.) 9

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

Verifying an Identity Example (Cont.) 11

Practice Problems  Page 426 Problems odd 12