$\sqrt{2 + \sqrt{2 + 2\cos 4\theta}} = $

  • A
    $2\cos \theta$
  • B
    $2\sin \theta$
  • C
    $\cos \theta$
  • D
    $\sin \theta$

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$\frac{\sin 3\theta - \cos 3\theta}{\sin \theta + \cos \theta} + 1 = $

સાબિત કરો કે $\sin 2x + 2 \sin 4x + \sin 6x = 4 \cos^2 x \sin 4x$.

જો $\tan \frac{A}{2} = \frac{3}{2}$ હોય,તો $\frac{1 + \cos A}{1 - \cos A} = $

$\cos \frac{\pi}{2^2} \cdot \cos \frac{\pi}{2^3} \cdot \dots \cdot \cos \frac{\pi}{2^{10}} \cdot \sin \frac{\pi}{2^{10}}$ ની કિંમત શોધો.

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

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