MCQ
$\int \frac{d x}{x^2+a^2}$
  • A
    $\tan ^{-1} \frac{x}{a}+C$
  • B
    $\frac{1}{a} \tan ^{-1} \frac{a}{x}+C$
  • $\frac{1}{a} \tan ^{-1} \frac{x}{a}+C$
  • D
    $\tan ^{-1} \frac{a}{x}+C$

Answer

Correct option: C.
$\frac{1}{a} \tan ^{-1} \frac{x}{a}+C$
C

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