यदि $\sec \theta + \tan \theta = m$ $(m > 1)$ है,तो $\sin \theta$ का मान ज्ञात कीजिए $(0^{\circ} < \theta < 90^{\circ})$।

  • A
    $\frac{1-m^{2}}{1+m^{2}}$
  • B
    $\frac{m^{2}-1}{m^{2}+1}$
  • C
    $\frac{m^{2}+1}{m^{2}-1}$
  • D
    $\frac{1+m^{2}}{1-m^{2}}$

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

यदि $\sin \alpha = \frac{2pq}{p^2 + q^2}$ है,तो $\sec \alpha - \tan \alpha = $

$\tan^{-1} \left( \frac{\sin 2 - 1}{\cos 2} \right)$ का मान किसके बराबर है?

$(\sec A + \tan A - 1)(\sec A - \tan A + 1) - 2\tan A = $

$\sqrt {2 + \sqrt {2 + 2\cos 4\theta } } = $

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