MCQ
$\int \sqrt{1+\cos 2 x} d x=$
  • $\sqrt{2} \cos x+C$
  • B
    $\sqrt{2} \sin x+C$
  • C
    $-\cos x-\sin x+C$
  • D
    $\sqrt{2} \sin \frac{x}{2}+C$

Answer

Correct option: A.
$\sqrt{2} \cos x+C$
(A)

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