Math141Mid3F11

Math141Mid3F11 - Math 141 Name: _ MIDTERM 3 PART 1 (CHAPTER...

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Math 141 Name: ________________________ MIDTERM 3 – PART 1 (CHAPTER 4) MATH 141 – FALL 2011 – KUNIYUKI 150 POINTS TOTAL: 27 FOR PART 1, AND 123 FOR PART 2 Show all work, simplify as appropriate, and use “good form and procedure” (as in class). Box in your final answers! No notes or books allowed. PART 1: SCIENTIFIC CALCULATORS ALLOWED! (27 POINTS TOTAL) If you round off at intermediate steps, round off to at least five significant digits. Write units where appropriate in your final answers. 1) A central angle of a circle of radius 6 centimeters intercepts an arc of length 3 centimeters along the circle. What is the radian measure of this angle? (4 points) 2) Give the solutions for tan ± = 6 , where 0 ± ± ² < 360 ± . Give your answers in degrees, and round them off to the nearest tenth of a degree (i.e., to one decimal place). (4 points)
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3) Give the solutions for cos ± = ² 0.75 , where 0 ± ² < 2 ³ . Give your answers in radians, and round them off to the nearest thousandth of a radian (i.e., to three decimal places). (4 points) 4)
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Math141Mid3F11 - Math 141 Name: _ MIDTERM 3 PART 1 (CHAPTER...

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