$\frac{\cos 17^\circ + \sin 17^\circ}{\cos 17^\circ - \sin 17^\circ} = $

  • A
    $\tan 62^\circ$
  • B
    $\tan 56^\circ$
  • C
    $\tan 54^\circ$
  • D
    $\tan 73^\circ$

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यदि $\sin \theta = \frac{12}{13}$ जहाँ $0 < \theta < \frac{\pi}{2}$ और $\cos \phi = -\frac{3}{5}$ जहाँ $\pi < \phi < \frac{3\pi}{2}$ है,तो $\sin(\theta + \phi)$ का मान ज्ञात कीजिए।

यदि $A, B, C, D$ एक चक्रीय चतुर्भुज के कोण हैं,तो $\cos A + \cos B + \cos C + \cos D = $

$\sin \theta + \cos \theta$ का मान कब अधिकतम होगा?

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