CBSE

MATHEMATICS · Single correct · CBSE · Mathematics · Inverse Trigonometric Functions · Inverse Trigonometric Functions

Problem

If 2tan⁡−1(cos⁡x)=tan⁡−1(2csc⁡x)2\tan^{-1}(\cos x)=\tan^{-1}(2\csc x), then x=x= (a) 3π4\frac{3\pi}{4} (b) π4\frac{\pi}{4} (c) π3\frac{\pi}{3} (d) None of these

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