કિંમત શોધો: $\sin ^2\frac{\pi }{8} + \sin ^2\frac{3\pi }{8} + \sin ^2\frac{5\pi }{8} + \sin ^2\frac{7\pi }{8} = $

  • A
    $1$
  • B
    $-1$
  • C
    $0$
  • D
    $2$

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Similar Questions

$\sin (\pi + \theta )\sin (\pi - \theta )\csc^2 \theta = $

કિંમત શોધો: $\tan A + \cot (180^\circ + A) + \cot (90^\circ + A) + \cot (360^\circ - A)$

$\frac{1}{\sin 250^{\circ}}+\frac{\sqrt{3}}{\cos 290^{\circ}} = $

$2 \cot^2 \theta - \cot \theta - 3$ પદાવલિના અવયવો પાડો.

પદાવલિ $\frac{\tan \left( \frac{3\pi}{2} - \alpha \right) \cos \left( \frac{3\pi}{2} - \alpha \right)}{\cos (2\pi - \alpha )} + \cos \left( \alpha - \frac{\pi}{2} \right) \sin (\pi - \alpha ) + \cos (\pi + \alpha ) \sin \left( \alpha - \frac{\pi}{2} \right)$ નું સાદું રૂપ નીચેનામાંથી કયું છે?

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