Drill 9-solutions - to (aqt73) Drill 9 seckin (54330) 1...

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to (aqt73) – Drill 9 – seckin – (54330) 1 This print-out should have 41 questions. Multiple-choice questions may continue on the next column or page – fnd all choices beFore answering. 001 (part 1 of 4) 10.0 points Suppose csc θ = 5 4 , tan θ = 4 3 a) ±ind sin θ . 1. 5 4 2. 4 3 3. 3 4 4. 3 5 5. 5 3 6. None oF these 7. 4 5 correct Explanation: θ is in Quadrant I. sin θ = 1 csc θ = 4 5 002 (part 2 of 4) 10.0 points b) ±ind cos θ . 1. None oF these 2. 5 3 3. 4 3 4. 3 5 correct 5. 5 4 6. 4 5 7. 3 4 Explanation: cos θ = sin θ tan θ = 4 5 · 3 4 = 3 5 003 (part 3 of 4) 10.0 points c) ±ind sec θ . 1. 5 3 correct 2. 4 5 3. 5 4 4. None oF these 5. 3 5 6. 4 3 7. 3 4 Explanation: sec θ = 1 cos θ = 5 3 004 (part 4 of 4) 10.0 points d) ±ind cot θ . 1. 4 5 2. 5 3 3. 5 4 4. 3 4 correct 5. 3 5 6. 4 3 7. None oF these Explanation: cot θ = 1 tan θ = 3 4
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to (aqt73) – Drill 9 – seckin – (54330) 2 005 (part 1 of 4) 10.0 points Suppose cot φ = - 2 , sin φ = 5 5 a) Find cos φ . 1. - 5 2 2. None of these 3. - 2 5 5 correct 4. - 1 2 5. 5 6. - 2 Explanation: φ is in Quandrant II. cos φ · sin φ sin φ = cot φ sin φ = - 2 5 5 006 (part 2 of 4) 10.0 points b) Find tan φ . 1. None of these 2. - 5 2 3. - 2 5 5 4. 5 5. - 2 6. - 1 2 correct Explanation: tan φ = 1 cot φ = - 1 2 007 (part 3 of 4) 10.0 points c) Find csc φ . 1. - 2 2. - 5 2 3. - 1 2 4. - 2 5 5 5. 5 correct 6. None of these Explanation: csc φ = 1 sin φ = 5 5 · 5 5 = 5 008 (part 4 of 4) 10.0 points d) Find sec φ . 1. - 2 5 5 2. - 2 3. 5 4. - 1 2 5. - 5 2 correct 6. None of these Explanation: sec φ = 1 cos φ = - 5 2 5 · 5 5 = - 5 2 009 (part 1 of 6) 10.0 points Consider the angle t de±ned by the point p 8 17 , 15 17 P
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to (aqt73) – Drill 9 – seckin – (54330) 3 p 8 17 , 15 17 P x y on the unit circle. a) Find sin t 1. 8 15 2. 17 15 3. 17 8 4. 15 17 correct 5. None of these 6. 8 17 7. 15 8 Explanation: ( x, y ) = p 8 17 , 15 17 P sin t = y = 15 17 010 (part 2 of 6) 10.0 points b) Find cos t 1. 8
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This note was uploaded on 06/14/2011 for the course MATH 305G taught by Professor Cathy during the Spring '11 term at University of Texas.

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Drill 9-solutions - to (aqt73) Drill 9 seckin (54330) 1...

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