यदि $1-\cos \theta = \sin \theta \cdot \sin \frac{\theta}{2}$ है,तो $\theta$ का मान क्या है?

  • A
    $2n\pi, n \in Z$
  • B
    $4n\pi, n \in Z$
  • C
    $2n\pi, 4n\pi, n \in Z$
  • D
    इनमें से कोई नहीं

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$\tan 2\theta \tan \theta = 1$ का हल है

यदि $2 \sin 2 \theta = \sqrt{3}$ है,तो $\theta = $ ($^{\circ}$ में)

$\tan \theta + \tan 2\theta = \tan 3\theta$ का व्यापक हल है

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