જો $\cos A = \frac{\sqrt{3}}{2}$ હોય,તો $\tan 3A = $

  • A
    $0$
  • B
    $1/2$
  • C
    $1$
  • D
    $\infty$

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$\sin \frac{\pi }{14} \sin \frac{3\pi }{14} \sin \frac{5\pi }{14} \sin \frac{7\pi }{14} \sin \frac{9\pi }{14} \sin \frac{11\pi }{14} \sin \frac{13\pi }{14}$ નું મૂલ્ય કેટલું થાય?

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