यदि $a \tan \theta = b$ है,तो $a \cos 2\theta + b \sin 2\theta = $

  • A
    $a$
  • B
    $b$
  • C
    $-a$
  • D
    $-b$

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Similar Questions

यदि $\tan \theta - \cot \theta = 0$ और $\theta$ एक धनात्मक न्यून कोण है,तो $\frac{\tan (\theta + 15^{\circ})}{\tan (\theta - 15^{\circ})}$ का मान क्या है?

$\sin 20^\circ \sin 40^\circ \sin 60^\circ \sin 80^\circ = $ ($/16$ में)

एक $\Delta ABC$ में,$\sin A \cos B \cos C + \sin B \cos C \cos A + \sin C \cos A \cos B$ का मान है:

यदि $\operatorname{cosec} \theta - \cot \theta = p$ है,तो $\operatorname{cosec} \theta$ का मान क्या होगा?

$\frac{{\sin \theta }}{{1 - \cot \theta }} + \frac{{\cos \theta }}{{1 - \tan \theta }} = $

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