यदि $\text{cosec} \theta = \frac{p + q}{p - q}$ है,तो $\cot \left( \frac{\pi}{4} + \frac{\theta}{2} \right) = $

  • A
    $\sqrt{\frac{p}{q}}$
  • B
    $\sqrt{\frac{q}{p}}$
  • C
    $\sqrt{pq}$
  • D
    $pq$

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यदि $\sin^3 x \sin 3x = \sum_{m=0}^n c_m \cos mx$ है,जहाँ $c_0, c_1, c_2, \dots, c_n$ स्थिरांक हैं और $c_n \neq 0$,तो $n$ का मान ज्ञात कीजिए।

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$\frac{\sec 8A - 1}{\sec 4A - 1} = $

सिद्ध कीजिए कि $\cos^{2} 2x - \cos^{2} 6x = \sin 4x \sin 8x$.

यदि $\tan x = \frac{3}{4}$ और $\pi < x < \frac{3\pi}{2}$ है,तो $\cos \frac{x}{2}$ का मान ज्ञात कीजिए।

यदि $\sqrt{\frac{1+\cos A}{1-\cos A}}=\frac{x}{y}$ है,तो $\tan A$ का मान किसके बराबर है?

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