यदि $\cosh x = \frac{4}{3}$ है,तो $3 \cosh x + 3^2 \cosh 2x + 3^3 \cosh 3x = $

  • A
    $175$
  • B
    $81$
  • C
    $64$
  • D
    $27$

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यदि $\alpha, \beta$ न्यून कोण हैं जैसे कि $\frac{\sin \alpha}{\sin \beta} = \frac{6}{5}$ और $\frac{\cos \alpha}{\cos \beta} = \frac{9}{5 \sqrt{5}}$,तो $\sin \alpha = $

यदि $\cos x = \frac{2 \cos y - 1}{2 - \cos y}$ जहाँ $x, y \in (0, \pi)$,तो $\tan(x/2) \cot(y/2) =$

यदि $\tan \left(\frac{\pi}{4}+\frac{\alpha}{2}\right)=\tan ^3\left(\frac{\pi}{4}+\frac{\beta}{2}\right)$ है,तो $\frac{3+\sin ^2 \beta}{1+3 \sin ^2 \beta}=$

समीकरणों $\sin x + \sin y = \sin(x + y)$ और $|x| + |y| = 1$ को संतुष्ट करने वाले क्रमित युग्मों $(x, y)$ की संख्या है

$\tan 2 \alpha \cdot \tan \left(30^{\circ}-\alpha\right)+\tan 2 \alpha \cdot \tan \left(60^{\circ}-\alpha\right)+\tan \left(60^{\circ}-\alpha\right) \cdot \tan \left(30^{\circ}-\alpha\right)$ का मान क्या है?

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