JEE MATHEMATICS MCQ: DIFFERENTIATION

1 Easy

1 of 1

Application +4 | -1

3 f(x)-2 f\left(\frac{1}{x}\right)=x

, then

f^{\prime}(2)=\ldots \ldots

View answer and explanation

Correct option: B

\frac{1}{2}

Option B (-a) is correct because the point P(a, f(a)) is nearest to (0,0) when the tangent at P is perpendicular to the line joining P and (0,0).

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