MCQ
$\cos ^{-1}\left(4 x^3-3 x\right)$ का सरल रूप है :
  • A
    $3 \sin ^{-1} x$
  • $3 \cos ^{-1} x$
  • C
    $\pi-3 \sin ^{-1} x$
  • D
    कोई नहीं (None)

Answer

Correct option: B.
$3 \cos ^{-1} x$
(B)

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