MCQ
यदि $y=\tan ^{-1}\left\{\frac{\cos x}{1+\sin x}\right\}$ तब $\frac{d y}{d x}=$ ?
  • A
    $\frac{1}{2}$
  • $\frac{-1}{2}$
  • C
    1
  • D
    -1

Answer

Correct option: B.
$\frac{-1}{2}$
B

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