Pre-Calc Exam Notes 153

Pre-Calc Exam Notes 153 - Appendix A Answers and Hints to...

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Unformatted text preview: Appendix A: Answers and Hints to Selected Exercises 153 sin θ =− radicallow 21/5 and tan θ =− radicallow 21/2 27. cos θ = radicallow 3/2 and tan θ = 1/ radicallow 3; cos θ =− radicallow 3/2 and tan θ =− 1/ radicallow 3 29. cos θ =± 1 and tan θ = 31. cos θ = 0 and tan θ is undefined 33. sin θ = 1/ radicallow 5 and cos θ =− 2/ radicallow 5; sin θ =− 1/ radicallow 5 and cos θ = 2/ radicallow 5 35. sin θ = 5/13 and cos θ = 12/13; sin θ = − 5/13 and cos θ = − 12/13 37. No 39. No Section 1.5 (p. 37) 1. (a) 328 ◦ (b) 148 ◦ (c) 212 ◦ 3. (a) 248 ◦ (b) 68 ◦ (c) 292 ◦ 7. 25 ◦ , 155 ◦ 9. 65 ◦ , 295 ◦ 11. 38 ◦ , 218 ◦ 13. 169 ◦ , 191 ◦ 15. D = parenleftBig ab 2 a 2 + b 2 , a 2 b a 2 + b 2 parenrightBig Chapter 2 Section 2.1 (p. 43) 1. b = 7.4, c = 15.1, C = 120 ◦ 3. a = 9.7, b = 10.7, C = 95 ◦ 5. b = 65.1, B = 136.5 ◦ , C = 18.5 ◦ 7. No solution 9. b = 24.9, B = 59.9 ◦ , C = 70.1 ◦ ; b = 9.9, B = 20.1 ◦ , C = 109.9 ◦ 11.11....
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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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