$\sin^6 \theta + \cos^6 \theta + 3 \sin^2 \theta \cos^2 \theta = $

  • A
    $0$
  • B
    $-1$
  • C
    $1$
  • D
    આમાંથી કોઈ નહીં

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જો $\frac{\sec \theta+\tan \theta}{\sec \theta-\tan \theta}=2 \frac{51}{79}$ હોય,તો $\sin \theta$ ની કિંમત શોધો.

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જો $\alpha$ બીજા ચરણમાં હોય,તો $\sqrt{\frac{1-\sin \alpha}{1+\sin \alpha}}-\sqrt{\frac{1+\sin \alpha}{1-\sin \alpha}}=$

ધારો કે $A$ અને $B$ વિધાનો છે:
$A: \cos \alpha + \cos \beta + \cos \gamma = 0$
$B: \sin \alpha + \sin \beta + \sin \gamma = 0$
જો $\cos (\alpha - \beta) + \cos (\beta - \gamma) + \cos (\gamma - \alpha) = -\frac{3}{2}$ હોય,તો:

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$\frac{2\sin \theta \tan \theta (1 - \tan \theta ) + 2\sin \theta \sec^2 \theta}{(1 + \tan \theta )^2} = $

$\frac{1}{4} \tan \frac{\pi}{8} + \frac{1}{8} \tan \frac{\pi}{16} + \frac{1}{16} \tan \frac{\pi}{32} + \dots \infty$ પદોનું મૂલ્ય કેટલું થાય?

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