यदि $\sin \theta = -\frac{1}{\sqrt{2}}$ और $\tan \theta = 1$ है,तो $\theta$ किस चतुर्थांश में स्थित है?

  • A
    प्रथम
  • B
    द्वितीय
  • C
    तृतीय
  • D
    चतुर्थ

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यदि $\operatorname{cosech} x = \frac{4}{5}$ है,तो $\sinh x = $

$\cos \theta(\operatorname{cosec} \theta - \sec \theta) - \cot \theta =$

यदि $\sin (\alpha - \beta ) = \frac{1}{2}$ और $\cos (\alpha + \beta ) = \frac{1}{2}$ है,जहाँ $\alpha$ और $\beta$ धनात्मक न्यून कोण हैं,तो:

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