यदि $\theta$ एक न्यून कोण है और $\sin \frac{\theta}{2} = \sqrt{\frac{x - 1}{2x}}$ है,तो $\tan \theta$ का मान ज्ञात कीजिए।

  • A
    $x^2 - 1$
  • B
    $\sqrt{x^2 - 1}$
  • C
    $\sqrt{x^2 + 1}$
  • D
    $x^2 + 1$

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यदि $\sin x + \cos x = \frac{1}{5}$ है,तो $\tan 2x$ का मान ज्ञात कीजिए।

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

$2\sin A\cos^3 A - 2\sin^3 A\cos A = $

यदि $\sin \theta = \frac{3}{5}$ और $\theta$ प्रथम चतुर्थांश में नहीं है,तो $15 \sin 2 \theta - 20 \cos 2 \theta - 7 \tan 2 \theta = $

यदि $630^{\circ} < \theta < 810^{\circ}$ और $\tan \theta = -\frac{7}{24}$ है,तो $\cos \left(\frac{\theta}{4}\right) = $

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