यदि $\frac{2\sin \alpha}{1 + \cos \alpha + \sin \alpha} = y$ है,तो $\frac{1 - \cos \alpha + \sin \alpha}{1 + \sin \alpha} = $

  • A
    $1/y$
  • B
    $y$
  • C
    $1 - y$
  • D
    $1 + y$

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