MCQ
$\int \frac{d x}{1+\cos x}=$
  • $\tan \frac{x}{2}+k$
  • B
    $\frac{1}{2} \tan \frac{x}{2}+k$
  • C
    $2 \tan \frac{x}{2}+k$
  • D
    $\tan ^2 \frac{x}{2}+k$

Answer

Correct option: A.
$\tan \frac{x}{2}+k$
(A)

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