MCQ
$\tan ^{-1}(1)+\cos ^{-1}\left(-\frac{1}{2}\right)+\sin ^{-1}\left(-\frac{1}{2}\right)=$
  • A
    $0$
  • B
    $\frac{\pi}{4}$
  • $\frac{3 \pi}{4}$
  • D
    कोई नहीं

Answer

Correct option: C.
$\frac{3 \pi}{4}$
(C)

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