$\frac{3 + \cot 76^{\circ} \cot 16^{\circ}}{\cot 76^{\circ} + \cot 16^{\circ}}$ का मान ज्ञात कीजिए।

  • A
    $\cot 46^{\circ}$
  • B
    $\tan 44^{\circ}$
  • C
    $\tan 2^{\circ}$
  • D
    $\cot 44^{\circ}$

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$\frac{\tan 80^{\circ}-\tan 10^{\circ}}{\tan 70^{\circ}}$ का मान ज्ञात कीजिए।

$\sin {163^\circ} \cos {347^\circ} + \sin {73^\circ} \sin {167^\circ} = $

यदि $\frac{x}{\cos \alpha} = \frac{y}{\cos \left(\frac{2 \pi}{3} - \alpha\right)} = \frac{z}{\cos \left(\frac{2 \pi}{3} + \alpha\right)}$ है,तो $(x + y + z)$ का मान किसके बराबर है?

यदि $\cos (\theta+\phi)=\frac{3}{5}$ और $\sin (\theta-\phi)=\frac{5}{13}$, जहाँ $0 < \theta, \phi < \frac{\pi}{4}$, तो $\cot (2 \theta)$ का मान ज्ञात कीजिए:

यदि दो कोण $\alpha, \beta$ इस प्रकार हैं कि $0 < \alpha, \beta < \frac{\pi}{4}$,$\sqrt{1+\cos 2 \alpha}=\frac{3}{\sqrt{5}}$ और $\frac{\sqrt{1-\cos 2 \beta}}{\sqrt{1+\cos 2 \beta}}=\frac{1}{7}$,तो $(2 \alpha+\beta)=$

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