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AP EAMCET201725 Apr 2017Evening ShiftMathematicsContinuity and DifferentiabilityActual

Suppose f(x) is twice differentiable in the interval [1, 3] and f(1)=f(3) . If |f^ (x) | 2 , then for all x in [1,3] , which one of the following is true?

Options

  1. A|f^ (x) | 1
  2. B-4 < f^ (x) < 4
  3. C|f^ (x) |>2
  4. D-3 f^ (x) 3

Correct answer

B. -4 < f^ (x) < 4

Step-by-step solution

No solution. Refer to answer key.

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