Wb JeeDifferentiationWB JEE 2011MCQ+1 / -0.252011Let \(f(x) = {x^3}{e^{ - 3x}},\,x > 0\). Then the maximum value of f(x) isAe\(-\)3B3e\(-\)3C27e\(-\)9D\(\infty\)Check AnswerClear SelectionReveal AnswerShow Explanation