Lim x cos x answers submitted d correct correct

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lim x cos x Answer(s) submitted: D (correct) Correct Answers: D 14. (1 point) By the ”end behavior” of a function we mean the behavior of its values as x and x to - . Do P ( x ) = 2 x 5 - 5 x 3 + 2 x and Q ( x ) = 2 x 5 have the same end behavior? Answer ”y” for yes or ”n” for no below. Answer(s) submitted: y (correct) Correct Answers: y 15. (1 point) A function is said to have a horizontal asymptote if either the limit at infinity exists or the limit at negative infinity exists. Show that each of the following functions has a horizontal asymptote by calculating the given limit. lim x - 7 x 3 + 2 x = lim x →- 8 x - 9 x 3 + 7 x - 8 = lim x x 2 - 9 x - 12 7 - 8 x 2 = lim x x 2 + 15 x 15 - 13 x = lim x →- x 2 + 15 x 15 - 13 x = Answer(s) submitted: -7/2 0 -1/8 -1/13 1/13 (correct) Correct Answers: -3.5 0 -0.125 -0.0769230769230769 0.0769230769230769 16. (1 point) Suppose the function f ( x ) is an odd func- tion and lim x f ( x ) = 25. Use this information to evaluate lim x →- f ( x ) . Answer: Answer(s) submitted: -25 (correct) Correct Answers: -25 17. (1 point) Find the following limit. Notes: Enter ”DNE” if limit Does Not Exist. lim x - 6 + 3 e x 3 + 6 e x = Solution: SOLUTION lim x - 6 + 3 e x 3 + 6 e x = lim x - 6 e - x + 3 3 e - x + 6 = 1 2 Answer(s) submitted: 3/6 3
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(correct) Correct Answers: 1/2 18. (1 point) Find the following limit. Notes: Enter ”DNE” if limit Does Not Exist. lim x →- - 7 e - x + 4 e x 6 e - x + 2 e x = Solution: SOLUTION lim x →- - 7 e - x + 4 e x 6 e - x + 2 e x = lim x →- - 7 + 4 e 2 x 6 + 2 e 2 x = - 7 6 Answer(s) submitted: 7/-6 (correct) Correct Answers: -7/6 19. (1 point) Evaluate the limit lim x ( 10 - x )( 7 + 9 x ) ( 3 - 11 x )( 3 + 10 x ) Answer(s) submitted: 9/110 (correct) Correct Answers: 9/(11*10) 20. (1 point) Evaluate the following limits.
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  • Fall '13
  • DrSulllivan
  • Continuous function, Limit of a function, lim c

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