MCQ
$\sec ^{-1} x+\operatorname{cosec}^{-1} x$ का मान है :
  • $\frac{\pi}{2}$
  • B
    $\frac{\pi}{4}$
  • C
    1
  • D
    $-\frac{\pi}{2}$

Answer

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

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