$\sec ^{2} \theta - \frac{\sin ^{2} \theta - 2 \sin ^{4} \theta}{2 \cos ^{4} \theta - \cos ^{2} \theta}$ ની કિંમત શોધો.

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

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જો $\tan \theta = \frac{a}{b}$ હોય,તો $\frac{{\sin \theta }}{{{{\cos }^8}\theta }} + \frac{{\cos \theta }}{{{{\sin }^8}\theta }} = $

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$\cos \frac{\pi}{10} \cos \frac{2\pi}{10} \cos \frac{4\pi}{10} \cos \frac{8\pi}{10} \cos \frac{16\pi}{10}$ નું મૂલ્ય શું છે?

કોઈપણ વાસ્તવિક કિંમત $\theta$ માટે $3 \cos \theta + 5 \sin \left( \theta - \frac{\pi}{6} \right)$ ની મહત્તમ કિંમત કેટલી છે?

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$\sqrt {\frac{{1 - \sin A}}{{1 + \sin A}}} = $

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