Pre-Calc Exam Notes 70

Pre-Calc Exam Notes 70 - 70 Chapter 3 Identities 3.1...

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Unformatted text preview: 70 Chapter 3 Identities 3.1 Exercises 1. We showed that sin = radicallow 1 cos 2 for all . Give an example of an angle such that sin = radicallow 1 cos 2 . 2. We showed that cos = radicalbig 1 sin 2 for all . Give an example of an angle such that cos = radicalbig 1 sin 2 . 3. Suppose that you are given a system of two equations of the following form: 1 A cos = B 1 B 2 cos A sin = B 2 sin . Show that A 2 = B 2 ( 2 1 + 2 2 2 1 2 cos ) . For Exercises 4-16, prove the given identity. 4. cos tan = sin 5. sin cot = cos 6. tan cot = tan 2 7. csc sin = csc 2 8. cos 2 1 + sin = 1 sin 9. 1 2 cos 2 sin cos = tan cot 10. sin 4 cos 4 = sin 2 cos 2 11. cos 4 sin 4 = 1 2 sin 2 12. 1 tan 1 + tan = cot 1 cot + 1 13....
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This note was uploaded on 01/21/2012 for the course MAC 1130 taught by Professor Dr.cheun during the Fall '11 term at FSU.

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