5.1-5.2 Quiz Review Precalculus CP Name: Verify the identities in ...

1. cos𝑥csc𝑥=cot𝑥 2. cos 2𝑥−sin𝑥=2cos2𝑥−1 3. cos𝜃sec𝜃 cot𝜃 =tan𝜃 4. sin𝑡 csc𝑡 +cos𝑡 sec𝑡 =1 5. tan 2𝑥−cot2𝑥 tan𝑥+cot𝑥 =tan𝑥−cot𝑥 6. Find the exact value of cos(2𝜋 3 −𝜋 6). 7. Find the exact value of cos50°cos20°+sin50°sin20°. Verify the identities in question 8-10. 8 ... ................
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