MCQ
$\cos ^{-1}\left(\frac{-1}{\sqrt{2}}\right)$ का मुख्य मान है :
  • $\frac{3 \pi}{4}$
  • B
    $\frac{5 \pi}{4}$
  • C
    $-\frac{\pi}{4}$
  • D
    कोई नहीं

Answer

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

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