MCQ
$\int \frac{x^3 d x}{1+x^8}=$
  • A
    $\tan ^{-1} x^4+c$
  • B
    $4 \tan ^{-1} x^4+c$
  • $\frac{1}{4} \tan ^{-1} x^4+c$
  • D
    $2 \tan ^{-1} x^4+c$

Answer

Correct option: C.
$\frac{1}{4} \tan ^{-1} x^4+c$
C

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