1. Basic Trigonometric Identities
Section 7-1
Basic Trigonometric Identities

2. Reciprocal Identities

3. Quotient Identities

4. Pythagorean Identities

5. Symmetry Identities

9. Solve for tangent

17. Prove that each equation is not a trigonometric identity by producing a counterexample.

18. Prove that sin x cos x = tan x is not a trigonometric identity by producing a counter example

19. Prove that sin x tan x = cos x is not a trigonometric identity by producing a counter example
Use π/6
sin π/6 tan π/6 =cos π/6
.28≠.86

20. Prove that sec x/tan x = sin x is not a trigonometric identity by producing a counter example
Let x = 45°
1.41≠.707

21. Simplify