यदि $7 \sin^{2} \theta + 3 \cos^{2} \theta = 4$ है,तो $\tan \theta$ का मान ज्ञात कीजिए (जहाँ $\theta$ न्यूनकोण है)।

  • A
    $1/\sqrt{2}$
  • B
    $1$
  • C
    $\sqrt{3}$
  • D
    $1/\sqrt{3}$

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यदि $(\sec A + \tan A)(\sec B + \tan B)(\sec C + \tan C) = (\sec A - \tan A)(\sec B - \tan B)(\sec C - \tan C)$ है,तो प्रत्येक पक्ष का मान क्या होगा?

यदि $\sin A + \cos A = \sqrt{2}$ है,तो $\cos^2 A = $

यदि $\tan^2 \theta = 2\tan^2 \phi + 1$ है,तो $\cos 2\theta + \sin^2 \phi$ का मान क्या होगा?

यदि $\sqrt{2} \tan 2 \theta = \sqrt{6}$ और $0^{\circ} < \theta < 45^{\circ}$ है,तो $\sin \theta + \sqrt{3} \cos \theta - 2 \tan^{2} \theta$ का मान ज्ञात कीजिए।

$\cos^2 \left( \frac{\pi}{4} - \beta \right) - \sin^2 \left( \alpha - \frac{\pi}{4} \right) = $

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