MCQ
$\int \frac{\cos 2 x}{\cos x+\sin x} d x=$
  • A
    $\sin x-\cos x+k$
  • B
    $-\sin x-\cos x+k$
  • $\sin x+\cos x+k$
  • D
    $-\sin x+\cos x+k$

Answer

Correct option: C.
$\sin x+\cos x+k$
C

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