$\sin 4\theta$ ને કેવી રીતે લખી શકાય?

  • A
    $4\sin \theta (1 - 2\sin^2 \theta )\sqrt{1 - \sin^2 \theta}$
  • B
    $2\sin \theta \cos \theta \sin^2 \theta$
  • C
    $4\sin \theta - 6\sin^3 \theta$
  • D
    આમાંથી કોઈ નહીં

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નીચેનામાંથી કયું નિત્યસમ સાચું છે?

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