જો $\sec x + \tan x = 2$,જ્યાં $0 < x < \frac{\pi}{2}$ હોય,તો $\sin \frac{x}{4}$ ની કિંમત શોધો.

  • A
    $\frac{1}{\sqrt{10+3 \sqrt{10}}}$
  • B
    $\frac{1}{\sqrt{2(10+3 \sqrt{10})}}$
  • C
    $\frac{1}{\sqrt{10-3 \sqrt{10}}}$
  • D
    $\frac{1}{2 \sqrt{10-3 \sqrt{10}}}$

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નીચેનામાંથી કઈ સંખ્યા/સંખ્યાઓ સંમેય છે?

$\frac{1-\cos 2 \theta+\sin 2 \theta}{1+\cos 2 \theta+\sin 2 \theta}=$

$\sin 4\theta$ ને કેવી રીતે લખી શકાય?

જો $630^{\circ} < \theta < 810^{\circ}$ અને $\tan \theta = -\frac{7}{24}$ હોય,તો $\cos \left(\frac{\theta}{4}\right) = $

$(4 \cos^2 9^{\circ} - 3)(4 \cos^2 27^{\circ} - 3) = $

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