यदि $2 \sin^{2} \theta - \cos^{2} \theta = 2$ है,तो $\theta$ का मान ज्ञात कीजिए। ($^{\circ}$ में)

  • A
    $30$
  • B
    $90$
  • C
    $0$
  • D
    $120$

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Similar Questions

यदि $\tan \theta = \frac{5}{12}$ है,तो $\cos \theta = \ldots$

सिद्ध कीजिए कि $\tan ^{4} \theta+\tan ^{2} \theta=\sec ^{4} \theta-\sec ^{2} \theta$

यदि $1+\sin ^{2} \theta=3 \sin \theta \cos \theta$ है,तो सिद्ध कीजिए कि $\tan \theta=1$ या $\frac{1}{2}$ है।

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सिद्ध कीजिए कि,$\tan \theta + \tan (90^{\circ} - \theta) = \sec \theta \sec (90^{\circ} - \theta)$

यदि $3 \sin \theta = 4 \cos \theta$ है,तो $\tan \theta = \ldots$

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