$\cos^{3}\left(\frac{\pi}{8}\right) \cdot \cos\left(\frac{3\pi}{8}\right) + \sin^{3}\left(\frac{\pi}{8}\right) \cdot \sin\left(\frac{3\pi}{8}\right)$ ની કિંમત શોધો.

  • A
    $\frac{1}{4}$
  • B
    $\frac{1}{\sqrt{2}}$
  • C
    $\frac{1}{2\sqrt{2}}$
  • D
    $\frac{1}{2}$

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Similar Questions

પદાવલિ $1 - \frac{\sin^2 y}{1 + \cos y} + \frac{1 + \cos y}{\sin y} - \frac{\sin y}{1 - \cos y}$ ની કિંમત કેટલી થાય?

ધારો કે $A, B$ અને $C$ એ એક સમતલીય ત્રિકોણના ખૂણાઓ છે અને $\tan \frac{A}{2} = \frac{1}{3}, \tan \frac{B}{2} = \frac{2}{3}$ છે. તો $\tan \frac{C}{2}$ ની કિંમત શોધો.

$\sin 75^\circ = $

$\cos 41^{\circ} \cdot \cos 42^{\circ} \cdot \cos 43^{\circ} \cdot \cos 44^{\circ} \cdot \cos 45^{\circ} \cdot \cos 46^{\circ} \cdot \cos 47^{\circ} \cdot \cos 48^{\circ} \cdot \cos 49^{\circ}$ ની કિંમત શોધો.

જો $A + B + C = 180^\circ$ હોય,તો $\sum \tan \frac{A}{2} \tan \frac{B}{2} = $

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