Question: Problem 4.(15 points) Consider the functionf (x)= ln(xcos(x)).Compute the first derivative of f (x) with respect to x.NOTE: You may need the ln rules: ln(ab)=

Problem 4.(15 points) Consider the functionf (x)= ln(xcos(x)).Compute the first derivative of f (x) with respect to x.NOTE: You may need the ln rules: ln(ab)= ln(a)+ln(b) and ln(ab)= b ln(a).

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