यदि $1+\sin \theta+\sin ^{2} \theta+\ldots \infty = 2 \sqrt{3}+4$ है,तो $\theta = $

  • A
    $\frac{\pi}{6}$
  • B
    $\frac{\pi}{4}$
  • C
    $\frac{\pi}{3}$
  • D
    $\frac{3 \pi}{4}$

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