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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