(a) For f(x) > 0 and differentiable on [a, b], show th = In(f(x)) is given by F(x))² + (f"(x))² L = f(x) xp- b) Use the result in part 2(a) to find the length of y In(sin x)

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A: We will use chain rule of derivative

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A: As per our guidelines we are suppose to solve only first question. Kindly repost the other question…

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A: Given query is to find the derivative of the expression.

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