MCQ
$3 \sec ^{-1} \frac{1}{x}-\sin ^{-1}\left(4 x^3-3 x\right)=$
  • A
    $\pi$
  • B
    $\frac{\pi}{2}$
  • $\frac{3 \pi}{2}$
  • D
    इनमें से कोई नहीं

Answer

Correct option: C.
$\frac{3 \pi}{2}$
C

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