यदि $\cos A + \cos B = \cos C$ और $\sin A + \sin B = \sin C$ है,तो व्यंजक $\frac{\sin(A + B)}{\sin 2C}$ का मान क्या है?

  • A
    $0$
  • B
    $1$
  • C
    $2$
  • D
    $3$

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यदि $\sin x + \csc x = 2$ है,तो $\sin^n x + \csc^n x$ का मान क्या होगा?

$\tan 9^\circ - \tan 27^\circ - \tan 63^\circ + \tan 81^\circ = $

$\sin ^4 \frac{\pi}{8} + \sin ^4 \frac{3\pi}{8} + \sin ^4 \frac{5\pi}{8} + \sin ^4 \frac{7\pi}{8} = $

$3\sin \theta + 4\cos \theta$ का न्यूनतम मान क्या है?

यदि $\cot 20^{\circ} = p$ है,तो $\frac{\tan 160^{\circ} - \tan 110^{\circ}}{1 + \tan 160^{\circ} \tan 110^{\circ}} =$

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