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Unformatted text preview: \ )*\‘(11) 2. r / MA 165 EXAM 1 Fa112010
NAME I STUDENT ID RECITATION INSTRUCTOR RECITATION TIME DIRECTIONS 1. Write your name, lO—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.
. Write your answers in the boxes provided. C0 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. 1 {7:102 — 5:12.
Write your answer in the form of interval(s). 1. Find the domain of the function h(:z:) = :3 where the graph intersects the coordinate axes, and the asymptotes, if any. (b) True or False. (Circle T or F) (i) f is a onewto—one function.
(ii) f is an even function.
(iii) The range of f is (Moo, 0).
(iv) The domain of f“1 is (0, 00). (v) f is increasing on (—00, 00). ,T
T
T
T
'1‘ (a) Make a rough sketch of the graph of the function y = f (11:) = —e"‘”. Show clearly F
F
F
F uj MA 165 EXAM 1 Fall 2010 Name —_._n_____.. Page 2/4 (6) 3. If f = 2563 + 3, ﬁnd a formula for the inverse function f ‘1. (8) 4. Find the exact value of each expression (a) 621n3 2 (b) logio 25 “I‘ logic 4 = (c) sin 21: = 4 C:
(d) C: (6) 5. Find all values of x in the interval [0, 271'] that satisfy the equation 2 cos m—i—sin 2x = 0. (4) 6. If a ball is thrown straight up into the air with a velocity of 50 ft/sec, its height in
feet after 2? seconds is given by y : 50t ~ 16152. Find the velocity when t = 3. (7) 7. Circle the interval in which you are sure that the equation 934 + 4:1: — 25 = 0 has a
solution. State the name of the theorem you are using. ,1
,2
,3 4 7 l
l BEE? Theorem: MA 165 EXAM 1 Fall 2010 Name Page 3/4 (10) 8. For each of the following, ﬁll in the boxes below with a ﬁnite number, or one of the symbols +00, —~oo, or DNE (does not exist). It is not necessary to give reasons for
your answers. zl+l . m _ (a) mgr—IE4 4+1} * j
2— (b) lim 9’ = w—n (a: — 1)2 e S (d) wan—12 2 + (C . 1 3
(6) i133) (E _ 3:243:22) — C: (6) 9. Write the equations of the vertical and horizontal asymptotes, if any, of the graph of _ m2 + 1
y H :32  l '
Vertical asymptotes
1’ 2 _ m 'f 7e 1
(6) 10. Consider the function f = x2 — 1 1 a: , where A is a constant.
A if a: = 1 Find the value of A for which f is continuous at a; = 1. MA 165 EXAM 1 Fall 2010 Name “Mn—M Page 4/4 (10) 11. Find the derivative of the function ﬁx) 2 :03 +9: using the deﬁnition of the derivative h 0 h . (0 credit for using a formula for the derivative).
*4 (6) 12. Find the equation of the tangent line to the curve y = 1 ~— 11:3 at the point (0,1). (15) 13. Find the derivatives of the following functions. Do not simplify. a:
(a) y _ Sinx' (b) f(a:) = ﬂ tangy. sec 9 ...
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This note was uploaded on 09/14/2011 for the course MA 165 taught by Professor Bens during the Fall '08 term at Purdue.
 Fall '08
 Bens
 Calculus, Geometry

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