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8 5 solving more difficult trig eqns

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This document discusses solving more difficult trigonometric equations by using trigonometric identities or a calculator. It provides examples of solving trig equations by rewriting them in quadratic form and using identities to isolate the trigonometric term being solved for. Students are prompted to solve similar practice problems and given hints on approaches like rewriting equations in quadratic form.

8.5 Solving More
Difficult Trig Equations
Objectives:
1. Use trig identities or a calculator
to solve trig equations

Example 1:
 Solve

You Try!
 Solve

Quadratic Form

Example 2:
 Solve
 (Hint: Rewrite in quadratic form)

Example 2b:
 Solve

You Try!
 Solve

Example 3:
 Solve
 Give answers to the nearest tenth.

You Try!
 Solve

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8 5 solving more difficult trig eqns

1. 8.5 Solving More Difficult Trig Equations Objectives: 1. Use trig identities or a calculator to solve trig equations

2. Example 1:  Solve

3. You Try!  Solve

4. Quadratic Form

5. Example 2:  Solve  (Hint: Rewrite in quadratic form)

6. Example 2b:  Solve

7. You Try!  Solve

8. Example 3:  Solve  Give answers to the nearest tenth.

9. You Try!  Solve