यदि $(\sin \alpha + \operatorname{cosec} \alpha)^{2} + (\cos \alpha + \sec \alpha)^{2} = K + \tan^{2} \alpha + \cot^{2} \alpha$ है,तो $K$ का मान ज्ञात कीजिए।

  • A
    $1$
  • B
    $7$
  • C
    $3$
  • D
    $5$

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यदि $180^{\circ} < \theta < 270^{\circ}$ है,तो $\sqrt{4 \sin^{4} \theta + \sin^{2} 2\theta} + 4 \cos^{2} \left(\frac{\pi}{4} - \frac{\theta}{2}\right)$ का मान ज्ञात कीजिए।

दिए गए व्यंजक $\sin A \cos A(\tan A - \cot A)$ का सरलीकृत रूप क्या है? (जहाँ $0^{\circ} \leq A \leq 90^{\circ}$)

यदि $\frac{x}{\cos \theta} = \frac{y}{\cos \left( \theta - \frac{2\pi}{3} \right)} = \frac{z}{\cos \left( \theta + \frac{2\pi}{3} \right)},$ है,तो $x + y + z = $

निम्नलिखित में से कौन सा सही है?

$\frac{\sin^2 A - \sin^2 B}{\sin A \cos A - \sin B \cos B} = $

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