Pre-Calc Exam Notes 152

Pre-Calc Exam Notes 152 - Appendix A Answers and Hints to...

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Unformatted text preview: Appendix A Answers and Hints to Selected Exercises Chapter 1 Section 1.1 (p. 5) 1. 115 ◦ 3. A = 52 ◦ , B = 104 ◦ 5. 45 ◦ 7. A = 9 ◦ , B = 81 ◦ 8. 0.011 ◦ and 89.989 ◦ 9. 25 miles 10. 111.8 ft 15. Hint: Are the opposite sides of the four- sided figure inside the circle parallel? Section 1.2 (p. 12) 1. sin A = 5/13, cos A = 12/13, tan A = 5/12, csc A = 13/5, sec A = 13/12, cot A = 12/5; sin B = 12/13, cos B = 5/13, tan B = 12/5, csc B = 13/12, sec B = 13/5, cot B = 5/12 3. sin A = 7/25, cos A = 24/25, tan A = 7/24, csc A = 25/7, sec A = 25/24, cot A = 24/7; sin B = 24/25, cos B = 7/25, tan B = 24/7, csc B = 25/24, sec B = 25/7, cot B = 7/24 5. sin A = 9/41, cos A = 40/41, tan A = 9/40, csc A = 41/9, sec A = 41/40, cot A = 40/9; sin B = 40/41, cos B = 9/41, tan B = 40/9, csc B = 41/40, sec B = 41/9, cot B = 9/40 7. sin A = 1/ radicallow 10, cos A = 3/ radicallow 10, tan A = 1/3, csc A = radicallow 10, sec A = radicallow 10/3, cot A = 3; sin B = 3/ radicallow 10, cos B = 1/...
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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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