The interval in which increases is

MATHEMATICS · Single correct · CBSE · Mathematics · Applications of Derivatives · Applications of Derivatives

Problem

The interval in which f(x)=cot⁡−1x+xf(x)=\cot^{-1}x+x increases is (1) R\mathbb{R} (2) (0,∞)(0,\infty) (3) R−{nπ}\mathbb{R}-\{n\pi\} (4) None of these

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