# pf - MA 15400 Practice Final Exam Purdue Department of...

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MA 15400 Practice Final Exam Purdue Department of Mathematics

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MA 15400 Practice Final Exam 4/09 1 1. If θ is in the second quadrant, and sin 0.6, find cos . θ = A. – 0.75 B. 0.2 C. – 0.8 D. 0.8 E. None of the above. 2. The following angles are all coterminal except: A. 3 π B. 3 5 C. ° 300 D. ° 420 E. ° 60 3. The radian measure of an angle of ° 135 is: A. 4 5 B. 2 3 π C. 4 3 π D. 8 7 π E. None of the above. 4. Use a calculator to find sec126 ° correct to 4 decimal places. A. 1.2361 B. – 0.5878 C. – 1.7013 D. – 1.2361 E. None of the above.
MA 15400 Practice Final Exam 4/09 2 5. If the point ( ) 12, 16 is on the terminal side of angle θ , find tan . A. 3 5 B. 4 5 C. 3 4 D. 5 4 E. None of the above. 6. If the diameter of a circle is 6 cm, find the length of the arc that subtends a central angle of ° 30 . A. 1.571 cm B. 2.356 cm C. 3.142 cm D. 9.425 cm E. None of the above. 7. Find the area of a sector determined by θ in problem #6. A. 1.571 cm 2 B. 2.356 cm 2 C. 3.142 cm 2 D. 9.425 cm 2 E. None of the above. 8. Sketched below is a portion of the graph of which trigonometric function? A. = x y 4 1 cos 2 1 B. ( ) x y 2 cos 4 = C. ( ) x y 4 cos 2 1 = D. = x y 2 1 cos 4 E. ( ) x y 2 cos 4 1 = π 4 π 2 1 1

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MA 15400 Practice Final Exam 4/09 3 9. The graph of y = 3 + sin x (Choose all the correct answers.) I. crosses the y -axis at 3 II. crosses the x -axis at multiples of π III. is always above the x -axis IV. has period 2 π A. I, II B. I, III, IV C. I, II, IV D. II, IV E. None of the above. 10. Give the domain, D , and the range, R , of ( ) cos . f x x = A. D = set of all real numbers, R=[–1, 1] B. D = [0, ), R = set of all real numbers. C.
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## This note was uploaded on 02/07/2011 for the course MA 154 taught by Professor Delworth during the Fall '08 term at Purdue University-West Lafayette.

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pf - MA 15400 Practice Final Exam Purdue Department of...

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