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The question is: Sketch the curve for f(x) =(lnx)^2/x , x >0 I've done 1 & 2 but stuck at 3 and onwards. Please help. I've got no clue how to continue. 1. find f'(x) 2. find f"(x) 3.find the local maxima and minima of f(x) 4. find all inflection points of f(x) 5. state the domain of f(x)...