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MathsMediumMCQ2019 ยท 12 Jan Shift 1

Q81.For x > 1, if (2x)2y = 4e2xโˆ’2y , then (1 + loge 2x)2 dxdy is equal to (1) loge2x (2) xloge2xโˆ’loge2x (3) xloge2x (4) xloge2x+loge2x

What This Question Tests

The problem involves differentiating an implicitly defined function using logarithms and then algebraic manipulation to isolate the required derivative expression. A crucial simplification step is to first take logarithm on both sides of the given equation.

Concepts Tested

Logarithmic differentiationImplicit differentiation

Formulas Used

d/dx(log u) = (1/u)du/dx

Chain rule

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