यदि $\cos \frac{\pi}{4} \cos \frac{\pi}{8} \cos \frac{\pi}{16} \cos \frac{\pi}{32} = 2^m \operatorname{cosec} \frac{\pi}{n}$ है,तो $m+n=$

  • A
    $27$
  • B
    $25$
  • C
    $28$
  • D
    $29$

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यदि $3 \sin x + 4 \cos x = 5$ है,तो $6 \tan \frac{x}{2} - 9 \tan^2 \frac{x}{2}$ का मान ज्ञात कीजिए।

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

सिद्ध कीजिए कि $\frac{\sin x - \sin 3x}{\sin^2 x - \cos^2 x} = 2 \sin x$.

$\tan \frac{\pi}{8}$ का मान किसके बराबर है?

यदि $3 \sin \theta = 2 \sin 3 \theta$ और $0 < \theta < \pi$ है,तो $\sin \theta =$

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