M2412T2-ReviewF09 - Math 2412: Precalculus Review for Test...

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Math 2412: Precalculus Review for Test 2 Instructor: Ahmed Rashed Name (print) PART I : MULTIPLE CHOICE [12 problems, 4 points each] Instructions: Choose one, and only one , answer for each question, and record your answer on the scantron sheet. Only the answers recorded on the scantron sheet will be graded Good luck. 1. sin 1 sin 2 3 ±± = (a) 3 (b) p 3 2 (c) p 3 2 (d) 2 3 (e) 3 2. cos ² csc 1 ( 2) ³ = (a) 1 2 (b) 6 (c) p 3 2 (d) 1 2 (e) p 3 2 3. What is the inverse, f 1 ; of the function f ( x ) = 3 + tan ( ) , for 1 2 < x < 1 2 ? (a) 3 + 1 tan 1 ( x ) (b) tan 1 ( x 3) + (c) tan 1 ( x + ) + 3 (d) 1 tan 1 ( x 3) (e) cot ( ) 3 4. Let ± = tan 1 p 7 5 ! . Then sec ( ± ) = ? (a) 5 p 7 (b) p 7 4 p 2 (c) 4 p 2 5 (d) 5 4 p 2 (e) 5 p 2 5. Find the exact value of sin ´ cos 1 2 11 ±µ . (a) 3 p 13 11 (b) 13 p 3 11 (c) 11 p 13 3 (d) 11 3 p 13 (e) 3 p 13 6. Given the rectangular equation ( x + 1) 2 + y 2 = 4 : Write an equivalent polar equation . (a)
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M2412T2-ReviewF09 - Math 2412: Precalculus Review for Test...

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