$\cos 52^\circ + \cos 68^\circ + \cos 172^\circ$ का मान है

  • A
    $0$
  • B
    $1$
  • C
    $2$
  • D
    $\frac{3}{2}$

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Similar Questions

मान लीजिए $S = \{x \in R : \cos(x) + \cos(\sqrt{2}x) < 2\}$,तो

$\frac{1-\cos(2x)+\sin(x)}{\sin(2x)+\cos(x)} = $

यदि $\theta$ तीसरे चतुर्थांश में है,तो $\sqrt{4 \sin ^4 \theta+\sin ^2 2 \theta}+4 \cos ^2\left(\frac{\pi}{4}-\frac{\theta}{2}\right)=$

यदि $\operatorname{cosec} \theta = \frac{p+q}{p-q}$ है,तो $\cot \left(\frac{\pi}{4} + \frac{\theta}{2}\right)$ का मान ज्ञात कीजिए।

$\cot 16^{\circ} \cot 44^{\circ} + \cot 44^{\circ} \cot 76^{\circ} - \cot 76^{\circ} \cot 16^{\circ} = $

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