$\cos^2 73^\circ + \cos^2 47^\circ + (\cos 73^\circ \cdot \cos 47^\circ)$ का सटीक मान क्या है?

  • A
    $1/4$
  • B
    $1/2$
  • C
    $3/4$
  • D
    $1$

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यदि $\frac{1}{6} \sin \theta, \cos \theta$ और $\tan \theta$ गुणोत्तर श्रेणी में हैं,तो $\theta$ का हल समुच्चय क्या है?

यदि $\operatorname{cosec} \theta + \cot \theta = 5$ है,तो $\sin \theta = $

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