$\operatorname{cosec} 15^{\circ} + \sec 15^{\circ}$ का मान ज्ञात कीजिए:

  • A
    $2 \sqrt{2}$
  • B
    $\sqrt{6}$
  • C
    $2 \sqrt{6}$
  • D
    $\sqrt{6} + \sqrt{2}$

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$\cos ^2\left(\frac{7 \pi}{8}\right)+\cos ^2\left(\frac{5 \pi}{8}\right)+\cos ^2\left(\frac{3 \pi}{8}\right)+\cos ^2\left(\frac{\pi}{8}\right)=$

यदि $\cot \theta = -\frac{2}{3}$ और $\theta$ चतुर्थ चतुर्थांश में स्थित नहीं है,तो $\frac{(5 \sin \theta + \cos \theta)^2}{\tan \theta + \cot \theta} = $

$\sin 50^\circ - \sin 70^\circ + \sin 10^\circ = $

$(\sin \theta + \cos \theta)(\tan \theta + \cot \theta)$ का मान क्या है?

त्रिकोणमितीय फलन $\tan \frac{19 \pi}{3}$ का मान ज्ञात कीजिए।

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