ધારો કે $S = \{\theta \in [0, 2\pi] : 8^{2 \sin^2 \theta} + 8^{2 \cos^2 \theta} = 16\}$. તો $n(S) + \sum_{\theta \in S} \left(\sec \left(\frac{\pi}{4} + 2\theta\right) \operatorname{cosec} \left(\frac{\pi}{4} + 2\theta\right)\right)$ ની કિંમત શોધો.

  • A
    $0$
  • B
    $-2$
  • C
    $-4$
  • D
    $12$

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$\sin \frac{\pi}{16} \sin \frac{3 \pi}{16} \sin \frac{5 \pi}{16} \sin \frac{7 \pi}{16}$ ની કિંમત શોધો.

$\cot 18^{\circ} \cdot \cot 36^{\circ}+1=$

$\tan \frac{\pi}{5} + 2 \tan \frac{2 \pi}{5} + 4 \cot \frac{4 \pi}{5}$ નું મૂલ્ય શું છે?

જો $A$ અને $B$ લઘુકોણ હોય જે $3 \cos ^2 A + 2 \cos ^2 B = 4$ અને $\frac{3 \sin A}{\sin B} = \frac{2 \cos B}{\cos A}$ નું સમાધાન કરે,તો $A + 2B =$ ($^{\circ}$ માં)

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