यदि $\cosh x = \frac{\sqrt{14}}{3}$,$\sinh x = \cos \theta$ और $-\pi < \theta < -\frac{\pi}{2}$ है,तो $\sin \theta =$

  • A
    $\frac{1}{3}$
  • B
    $\frac{2}{3}$
  • C
    $-\frac{1}{3}$
  • D
    $-\frac{2}{3}$

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यदि $\sec \theta = \frac{13}{12}$ और $\theta$ चौथे चतुर्थांश ($4^{\text{th}}$ quadrant) में स्थित है,तो $\tan \theta \times \operatorname{cosec} \theta \times \sin \theta \times \cos \theta = $

$\tan \theta \sin \left( \frac{\pi }{2} + \theta \right) \cos \left( \frac{\pi }{2} - \theta \right) = $

$\frac{{\cot^2 15^\circ - 1}}{{\cot^2 15^\circ + 1}} = $

व्यंजक $\tan(x - 9\pi)$ का मान किसके बराबर है:

यदि $\tan \theta = -\frac{4}{3}$ है,तो $\sin \theta = $

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