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MathsMediumMCQ2021 · 26 Aug Shift 2

Q74.The local maximum value of the function, f(x) = ( x2 )x2 , x > 0, e (1) 1 (2) ( √e4 ) 4 e (3) (e) 2e (4) (2√e) 1 π x x )dx is :

What This Question Tests

This question requires finding the local maximum value of a function of the form f(x)^g(x), which involves logarithmic differentiation and applying the first or second derivative test.

Concepts Tested

Finding critical points using first derivativeSecond derivative test for maxima/minimaLogarithmic differentiation

Formulas Used

d/dx (f(x)^g(x)) = f(x)^g(x) [g'(x)ln(f(x)) + g(x)f'(x)/f(x)]

f'(x) = 0 for critical points

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