यदि $A = 130^\circ$ और $x = \sin A + \cos A$ है,तो

  • A
    $x > 0$
  • B
    $x < 0$
  • C
    $x = 0$
  • D
    $x \le 0$

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यदि $\tan \alpha = \frac{m}{m + 1}$ और $\tan \beta = \frac{1}{2m + 1}$ है,तो $\alpha + \beta = $

$\cos 1^{\circ} \cos 2^{\circ} \cos 3^{\circ} \ldots \cos 179^{\circ}$ का मान क्या है?

$\tan 57^{\circ} - \tan 12^{\circ} - \tan 57^{\circ} \tan 12^{\circ}$ का मान क्या है?

यदि $A = \sin 45^{\circ} + \cos 45^{\circ}$ और $B = \sin 44^{\circ} + \cos 44^{\circ}$ है,तो

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