MCQ
$\tan ^{-1} x+\cot ^{-1} x$ का मान है :
  • A
    $-\pi$
  • B
    $-\frac{\pi}{2}$
  • $\frac{\pi}{2}$
  • D
    $\frac{\pi}{4}$

Answer

Correct option: C.
$\frac{\pi}{2}$
(C)

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