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Class 26 : Question 3

Class 26 : Question 3. The limit. A. Does not exist because ∞ - ∞ is not defined. B. Converges to 1. C. Converges to 0. D. Is ∞ because xe 1/x grows faster than x. Class 28 : Question 1.

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Class 26 : Question 3

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  1. Class 26: Question 3 The limit A. Does not exist because∞ - ∞ is not defined.B. Converges to 1. C. Converges to 0.D. Is ∞ because xe1/x grows faster than x.

  2. Class 28: Question 1 The duration of daylight L in minutes (sunrise to sunset) x kilometers north of the equator on May 17 is given by the function L=f(x). What are the units of measurement of the second derivative f''(4000)? A. kilometers/minute B. minutes/kilometer.C. kilometer/minute2. D. minutes/kilometer2.E. minutes2/kilometer2.

  3. Class 28: Question 2 The derivative of a function is negative everywhere on the interval x=2 to x=3.Where on this interval does f(x)have its maximum value? A. At x=2.B. At x=3.C. Somewhere between x=2 and x=3.D. It does not have a maximum since the derivative is never zero.E. We can not tell if it has a maximum since we don’t know where the second derivative is negative.

  4. Class 28: Question 3 TRUE or FALSE: If f′′(a)=0, then f has an inflection point at a A. TRUE B. FALSE.

  5. Class 28: Question 4 TRUE or FALSE: A local maximum of f only occurs at a point where f′(x)=0. A. TRUE B. FALSE.

  6. Class 28: Question 5 TRUE or FALSE: If x=p is NOT a local extremum of f, then x=p is not a critical point of f. A. TRUE B. FALSE.

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