MCQ
$\int \frac{3 d x}{\sqrt{1-9 x^2}}=$
  • A
    $\tan ^{-1} 3 x+k$
  • B
    $\sec ^{-1} 3 x+k$
  • $\sin ^{-1} 3 x+k$
  • D
    $\cos ^{-1} 3 x+k$

Answer

Correct option: C.
$\sin ^{-1} 3 x+k$
C

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