જો $\sqrt{x + iy} = \pm(a + ib)$ હોય,તો $\sqrt{-x - iy}$ ની કિંમત શું થાય?

  • A
    $\pm(b + ia)$
  • B
    $\pm(a - ib)$
  • C
    $\pm(b - ia)$
  • D
    આમાંથી કોઈ નહીં

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