Question: Problem 3. Show that the function f(a) = cos (n'a) is differentiable on [0, 1] and f'(a) is continuous on 10, 1

Problem 3. Show that the function f(a) = cos (n'a) is

differentiable on [0, 1] and f'(a) is continuous on 10, 1

Problem 3. Show that the function f(a) = cos (n'a) is differentiable on [0, 1] and f'(a) is continuous on 10, 1

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