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मान ज्ञात कीजिए: $\cos^2 A(3 - 4\cos^2 A)^2 + \sin^2 A(3 - 4\sin^2 A)^2$

यदि $\cos A = \frac{7}{25}$ और $\frac{3 \pi}{2} < A < 2 \pi$ है,तो $\cos \frac{A}{4} + \cos \frac{A}{2} - \cos 2A =$

यदि $\sin \alpha = \frac{336}{625}$ और $450^\circ < \alpha < 540^\circ$ है,तो $\sin \left( \frac{\alpha}{4} \right) = $

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यदि $\cos x = -\frac{1}{3}$ और $x$ चतुर्थांश $III$ में स्थित है,तो $\sin \frac{x}{2}, \cos \frac{x}{2}$ और $\tan \frac{x}{2}$ का मान ज्ञात कीजिए।

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यदि $\sin 6 \theta = 32 \cos^5 \theta \sin \theta - 32 \cos^3 \theta \sin \theta + 3x$ है,तो $x$ का मान ज्ञात कीजिए:

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