यदि $1+\cos^{2} \theta = 3 \sin \theta \cos \theta$ है,तो $\cot \theta$ का पूर्णांक मान $(0 < \theta < \frac{\pi}{2})$ ज्ञात कीजिए।

  • A
    $3$
  • B
    $1$
  • C
    $0$
  • D
    $2$

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$\sec ^{2} 12^{\circ}-\frac{1}{\tan ^{2} 78^{\circ}}$ का मान है

यदि $\cos A = \cos B \cos C$ और $A + B + C = \pi$ है,तो $\cot B \cot C$ का मान ज्ञात कीजिए।

$\theta$ 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:

$6(\sin^6 \theta + \cos^6 \theta) - 9(\sin^4 \theta + \cos^4 \theta) + 4$ का मान है

$\frac{1}{{\tan 3A - \tan A}} - \frac{1}{{\cot 3A - \cot A}} = $

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