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

  • A
    $\sqrt{2} \log \tan \left(x+\frac{\pi}{4}\right)+c$,જ્યાં $c$ એ સંકલનનો અચળાંક છે.
  • B
    $\frac{1}{\sqrt{2}} \log \tan \left(\frac{x}{2}+\frac{\pi}{8}\right)+c$,જ્યાં $c$ એ સંકલનનો અચળાંક છે.
  • C
    $\frac{1}{\sqrt{2}} \log \left(\frac{\tan \frac{x}{2}-\sqrt{2}+1}{\tan \frac{x}{2}+\sqrt{2}+1}\right)+c$,જ્યાં $c$ એ સંકલનનો અચળાંક છે.
  • D
    $-\frac{1}{\sqrt{2}} \log \left(\frac{\tan \frac{x}{2}-(\sqrt{2}+1)}{\tan \frac{x}{2}+\sqrt{2}-1}\right)+c$,જ્યાં $c$ એ સંકલનનો અચળાંક છે.

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