જો $L = \sin^{2}\left(\frac{\pi}{16}\right) - \sin^{2}\left(\frac{\pi}{8}\right)$ અને $M = \cos^{2}\left(\frac{\pi}{16}\right) - \sin^{2}\left(\frac{\pi}{8}\right)$ હોય,તો નીચેનામાંથી કયું સાચું છે?

  • A
    $M = \frac{1}{2\sqrt{2}} + \frac{1}{2} \cos \frac{\pi}{8}$
  • B
    $L = \frac{1}{4\sqrt{2}} - \frac{1}{4} \cos \frac{\pi}{8}$
  • C
    $M = \frac{1}{4\sqrt{2}} + \frac{1}{4} \cos \frac{\pi}{8}$
  • D
    $L = -\frac{1}{2\sqrt{2}} + \frac{1}{2} \cos \frac{\pi}{8}$

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જો $\tan \alpha = \frac{1}{7}$ અને $\sin \beta = \frac{1}{\sqrt{10}}$ જ્યાં $0 < \alpha, \beta < \frac{\pi}{2}$ હોય,તો $2\beta$ ની કિંમત શોધો.

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

$\tan A + 2 \tan 2A + 4 \tan 4A + 8 \cot 8A = $

નીચેનામાંથી કયું નિત્યસમ સાચું છે?

જો $90^\circ < A < 180^\circ$ અને $\sin A = \frac{4}{5}$ હોય,તો $\tan \frac{A}{2}$ ની કિંમત શોધો.

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