यदि $\tan \theta \cdot \tan 2 \theta = 1$ है,तो $\sin ^{2} 2 \theta + \tan ^{2} 2 \theta$ का मान ज्ञात कीजिए।

  • A
    $\frac{3}{4}$
  • B
    $\frac{10}{3}$
  • C
    $3 \frac{3}{4}$
  • D
    $3$

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यदि $\tan \theta + \cot \theta = 5$ है,तो $\tan^2 \theta + \cot^2 \theta$ का मान क्या होगा?

$\sin \frac{\pi }{14} \sin \frac{3\pi }{14} \sin \frac{5\pi }{14} \sin \frac{7\pi }{14} \sin \frac{9\pi }{14} \sin \frac{11\pi }{14} \sin \frac{13\pi }{14}$ का मान किसके बराबर है?

$\theta$ के सभी अनुमेय मानों के लिए $\frac{\sin^2 \theta}{\sin \theta - \cos \theta} - \frac{\sin \theta + \cos \theta}{\tan^2 \theta - 1}$ का मान है:

यदि $\sin \alpha = -\frac{3}{5},$ जहाँ $\pi < \alpha < \frac{3\pi}{2}$ है,तो $\cos \frac{\alpha}{2} = $

$2\cos^2 \theta - 2\sin^2 \theta = 1$,तो $\theta = \dots \dots ^\circ$

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