જો $\sin 2\theta + \sin 2\phi = 1/2$ અને $\cos 2\theta + \cos 2\phi = 3/2$ હોય,તો $\cos^2(\theta - \phi) = $

  • A
    $3/8$
  • B
    $5/8$
  • C
    $3/4$
  • D
    $5/4$

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જો $\sin(\theta) + \operatorname{cosec}(\theta) = 2$ હોય,તો $\sin^{2020}(\theta) + \operatorname{cosec}^{2020}(\theta) = \dots$

જો $\sin A, \cos A$ અને $\tan A$ એ $G.P.$ માં હોય,તો $\cos^3 A + \cos^2 A$ ની કિંમત શોધો.

$\cos \frac{\pi}{7} - \cos \frac{2\pi}{7} + \cos \frac{3\pi}{7} - \cos \frac{4\pi}{7} + \cos \frac{5\pi}{7} - \cos \frac{6\pi}{7} = $

જો $\sin \theta + \operatorname{cosec} \theta = 2$ હોય,તો $\sin^{10} \theta + \operatorname{cosec}^{10} \theta$ નું મૂલ્ય કેટલું થાય?

પદાવલિના અવયવ પાડો: $\sec ^2 x+5 \tan x+5$

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