$\int \frac{d x}{\sin x+\cos x}=$

  • A
    $\frac{1}{\sqrt{2}} \log \left|\tan \left(\frac{x}{2}+\frac{\pi}{8}\right)\right|+C$
  • B
    $\frac{1}{\sqrt{2}} \log \left|\tan \left(\frac{x}{2}+\frac{\pi}{4}\right)\right|+ C$
  • C
    $\frac{1}{\sqrt{2}} \log \left|\tan \left(\frac{x}{4}+\frac{\pi}{2}\right)\right|+ C$
  • D
    $\frac{1}{\sqrt{2}} \log \left|\tan \left(\frac{x}{8}+\frac{\pi}{2}\right)\right|+ C$

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