Math110_Common 2

# Math110_Common 2 - Math 110Exam2 Spring2009 ShowAll Work...

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Math 110 Exam 2 Spring 2009 ShowAll Work. Credit will not be given for answers without appropriate mathematical justification. The use of calculators is notpermitted. . MATH DEPARTMENT RULES PROHIBIT PROCTORS FROM DISCUSSING ANY ASPECT OT TI{E TEST WITH STTJDENTS DURING THE EXAM. . (All problems count 15points with l0 points allocated for recitation work ) l. A wheel of radius 6 inches rolls 20 feet to the left. a) How manydegrees does a spoke on the wheelturn through b) How manyrevolutions does the wheel :*" 2. a) change 900 degrees to radians b Evaluate sin(585") c. The distance of a point P from the origrn O is 7 units and an angle of inclination of OP is ffradi,ans. Find the cartesian coordinates ofthe point p. 3. A wheel has radius3 inches. A point Pllside the wheel has coordinates ( - 1, 1) before the wheel starts to roll. Find the final coordinates of this point after wheel has rolled 7zr inches to the left 4.(c) Sketch the graph of r : (L - cosl) inpolar coord,inates , (b) Expand the expression (l - cos0)2 (c) Substitute 45 degrees

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