यदि $\frac{\tan (\alpha+\beta-\gamma)}{\tan (\alpha-\beta+\gamma)}=\frac{\tan \gamma}{\tan \beta}$ और $\beta \neq \gamma$ है,तो $\sin 2 \alpha+\sin 2 \beta+\sin 2 \gamma$ का मान क्या है?

  • A
    $0$
  • B
    $1$
  • C
    $2$
  • D
    $\frac{1}{2}$

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यदि $\sin 3\alpha = 4 \sin \alpha \cdot \sin(x + \alpha) \cdot \sin(x - \alpha)$ जहाँ $\alpha \neq n\pi, n \in Z$, तो $x$ के सभी संभावित मान हैं

${\sin ^4}\frac{\pi }{8} + {\sin ^4}\frac{{3\pi }}{8} + {\sin ^4}\frac{{5\pi }}{8} + {\sin ^4}\frac{{7\pi }}{8} = $

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यदि $\sin A = \sin B$ और $\cos A = \cos B$ है,तो

मान लीजिए $P = \{ \theta : \sin \theta - \cos \theta = \sqrt{2} \cos \theta \}$ और $Q = \{ \theta : \sin \theta + \cos \theta = \sqrt{2} \sin \theta \}$ दो समुच्चय हैं। तो

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