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Unformatted text preview: MA 165 EXAM 2 Fall 2007 Page 1/4 NAME
Page 1
10DIGIT PUID _* Page 2 "
Page 3
RECITATION INSTRUCTOR
Page 4
RECITATION TIME —* TOTAL /100
DIRECTIONS
1. Write your name, 10—digit PUID, recitation instructor’s name and recitation time in
the space provided above. Also write your name at the top of pages 2, 3 and 4.
2. The test has four (4) pages, including this one.
3. Write your answers in the boxes provided.
4. You must show sufﬁcient work to justify all answers unless otherwise stated in the
problem. Correct answers with inconsistent work may not be given credit.
5. Credit for each problem is given in parentheses in the left hand margin.
6. No books, notes, calculators or any electronic devices may be used on this exam.
(16) 1. Find the derivative of the following functions. (It is not necessary to simplify). (a) y = (1 + cos2 a:)6 (b) 9(75) 2 W (c) y = sin2 (3x) (d) y : ln(ac4 tan x) MA 165 EXAM 2 Fall 2007 Page 2/4 d
(8) 2. Find 21% by implicit differentiation, if 51:23; + my2 2 31:. (8) 3. Find the second derivative of y = 1262’”. (12) 4. Find the exact value of each expression. <— a (b) sec(tan_1 2) (c) tan—1 (tan 5%) (d) cos‘1 0 3
(6) 5. Find the slope of the tangent line to the curve 3/ : sinhm at the point (1n 2, 21—) and express your answer as the ratio of two integers. H MA 165 EXAM 2 Fall 2007 Page 3/4 (12) 6. Find the derivatives of the following functions. (It is not necessary to simplify).
(a) y = tan—1032) (b) f(a:) = sin—1(2x —— 1) (6) 7. Find the linearization L(:c) 0f the function f (51:) : x5 at a = 1. (8) 8. Find the differential dy if
(a) y = \/ 1 + $2 (b) y = sec(3a:) MA 165 EXAM 2 Fall 2007 Page 4/4 (12) 9. A boat is pulled into a dock by a rope attached to the bow of the boat and passing
through a pulley on the dock that is 1 m higher than the bow of the boat. If the rope
is pulled in at a rate of 1 m/sec, how fast is the boat approaching the dock When it is
8 m from the dock. The boat is approaching the dock at the rate of m/ sec (12) 10. A coffee cup has the shape of an inverted circular cone with height 10 cm and radius
at the top 5 cm. If coﬁee is poured into the cup at the rate of 2 cm3/ sec, how fast is
the coffee level rising when the coffee is 5 cm deep? The coffee level is rising at the rate of cm/sec ...
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 Fall '08
 Bens
 Calculus, Geometry

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