यदि $\theta$ कोई कोण है,तो $\sin^2 \theta \cos^2 \theta =$

  • A
    $1 - \cos 2\theta$
  • B
    $1 - \cos 4\theta$
  • C
    $\frac{1}{4}(1 - \cos 4\theta)$
  • D
    $\frac{1}{8}(1 - \cos 4\theta)$

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