$\int \frac{dx}{2+\cos x} = $ (जहाँ $C$ समाकलन का एक स्थिरांक है।)

  • A
    $\frac{2}{\sqrt{3}} \tan^{-1}\left(\frac{\tan(x/2)}{2\sqrt{3}}\right) + C$
  • B
    $\frac{1}{2\sqrt{3}} \tan^{-1}\left(\frac{\tan(x/2)}{2\sqrt{3}}\right) + C$
  • C
    $\frac{1}{\sqrt{3}} \tan^{-1}\left(\frac{\tan(x/2)}{\sqrt{3}}\right) + C$
  • D
    $\frac{2}{\sqrt{3}} \tan^{-1}\left(\frac{\tan(x/2)}{\sqrt{3}}\right) + C$

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