निम्नलिखित समाकल ज्ञात कीजिए:
$\int \frac{1}{1+\tan x} d x$

  • A
    $\frac{x}{2} + \frac{1}{2} \log |\cos x + \sin x| + C$
  • B
    $\frac{x}{2} - \frac{1}{2} \log |\cos x + \sin x| + C$
  • C
    $x + \log |\cos x + \sin x| + C$
  • D
    $\frac{1}{2} \log |\cos x + \sin x| + C$

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