वक्र $x = \theta + \sin \theta, y = 1 + \cos \theta$ के लिए $\theta = \frac{\pi}{2}$ पर अभिलंब का समीकरण ज्ञात कीजिए।

  • A
    $2x + 2y - \pi = 0$
  • B
    $2x - y - \pi = 0$
  • C
    $2x - 2y - \pi = 0$
  • D
    $2x + y - \pi = 0$

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