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# Trigonometry MATH 1112

GSU

GPA 3.52

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This 5 page Class Notes was uploaded by Anibal Schmidt on Monday October 12, 2015. The Class Notes belongs to MATH 1112 at Georgia Southern University taught by Francois Ziegler in Fall. Since its upload, it has received 17 views. For similar materials see /class/222038/math-1112-georgia-southern-university in Mathematics (M) at Georgia Southern University.

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Date Created: 10/12/15

Math 1112 Review 1 F Ziegler Name Fall 2009 Select all answers from choices A B C D E at the bottom of the page 1 A ship in the Paci c sends a distress call signaling its position at latitude 354quot North The nearest ship signals itself directly north at latitude 399 Assuming the Earth7s radius is 3960 miles nd how many miles apart they are Round to the nearest mile It takes the Earth a year to travel approximately a circle of radius 93 million miles around the Sun 2 Find the Earth7s angular velocity in degrees per day Give 2 decimal places 3 Find the Earth7s linear velocity in miles per day Round to the nearest mile Find the exact value of the trigonometric functions 4 sint9 20 12 5 cos0 A 6 tant9 A g g 3 099 g 1600921 12 positive Q1 B xz g g 093 g 2758 525 negative Q11 W W o 87539 j 153 7093 7r 17820 279 QHI 2V5 3 4 12 71 D T m 5 13 002 87139 4 1623156 311 QIV E None of the above A 7 7 e Suppose that angle 04 1s acute and has tana 7 Find 7 sina 8 cosa Suppose that angle 6 is acute and has sin Find 9 tan 6 Find in which quadrant the angle lies and deduce the sign of the trigonometric value 10 250 is in quadrant Ql Qll Qlll QlV 11 sin 250 is positive negative 12 330 is in quadrant Ql Qll Qlll QlV 13 tan330 is positive negative 12 740 is in quadrant Ql Qll Qlll QlV 13 cos740 is positive negative A g g 3 099 g 1 600 921 12 positive Q1 B x3 g 0 93 g 2 758 525 negative Q11 0 g 3 153 i 093 ii 17 820 279 Qiii D g g 0 02 87139 1 1623156 311 in E None of the above Use the reference angle to nd the exact value of 14 sin 765 7 15 tanT 8 Suppose that angle 04 is in quadrant ll and has tana 73 Find 16 cosa Suppose that angle 6 has the point 71536 on its terminal side Find 17 sin Consider the function y 73 cos Find 18 its amplitude 19 its period A 22 g 3 099 g 1 600 921 12 positive Q1 B x3 g 0 93 g 2 758 525 negative Q11 0 g j 153 i 093 7r 17 820 279 Qiii D g g 002 87f g 1623156 311 on E None of the above Consider the function y 7 sin2z 7 27139 Find 20 its amplitude 21 its period 22 its phase shift 23 Graph the function y 74 cos 52g show at least one period and label the intercepts g g 3 099 g 1 600 921 12 positive Q1 i3 g 0 93 g 2 758 525 negative Q11 V5 3 V31 3 5 T 4 E i 093 7r 17820 279 Qiii 2V5 V3 3 4 12 7r 77 m 5 E 0 02 87139 1623156 311 in None of the above Find the exact value of the expression 24 COSCOS 17093 25 cos 1cos7093 26 tan 1tan7g 27 sintan 12 g g 3 099 g 1 600 921 12 positive Q1 i3 g 0 93 g 2 758 525 negative Q11 g V g j T53 i 093 7r 17 820 279 QHI 7 g g g 0 02 3w 1 1623156 311 QIV None of the above

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