નીચેનામાંથી કઈ સંખ્યા/સંખ્યાઓ સંમેય છે?

  • A
    $\sin 15^\circ$
  • B
    $\cos 15^\circ$
  • C
    $\sin 15^\circ \cos 15^\circ$
  • D
    $\sin 15^\circ \cos 75^\circ$

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