Question: 4. * Let f be a differentiable function such that f'(a:) 2 M > 0 for all 3: E [0, 1]. Show that there is

4. * Let f be a differentiable function such that f'(a:)

4. * Let f be a differentiable function such that f'(a:) 2 M > 0 for all 3: E [0, 1]. Show that there is an interval of length 1/4 on which l 2 M/4

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