A Squared-Log Bound

Problem

The inequality

(x−a)2ln⁡x⩽4e2(x - a)^2\ln x \leqslant 4e^2

holds for all x∈(0,3e]x \in (0, 3e]. Find the range of possible values of aa.

Answer

Solution

Difficulty8/10
TopicsExtrema, calculus, Monotonicity, Logarithms, inequality

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