यदि $A$ और $B$ न्यून कोण हैं जैसे कि $\sin A = \sin^2 B$ और $2 \cos^2 A = 3 \cos^2 B$, तो $(A, B) =$

  • A
    $\left(\frac{\pi}{6}, \frac{\pi}{4}\right)$
  • B
    $\left(\frac{\pi}{6}, \frac{\pi}{6}\right)$
  • C
    $\left(\frac{\pi}{4}, \frac{\pi}{6}\right)$
  • D
    $\left(\frac{\pi}{4}, \frac{\pi}{4}\right)$

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मान लीजिए $A = \{\theta \in R : (\frac{1}{3} \sin \theta + \frac{2}{3} \cos \theta)^2 = \frac{1}{3} \sin^2 \theta + \frac{2}{3} \cos^2 \theta\}$. तो:

यदि $\cosh \beta = \sec \alpha \cos \theta$ और $\sinh \beta = \operatorname{cosec} \alpha \sin \theta$ है,तो $\sinh^2 \beta =$

$\cos^{3}\left(\frac{\pi}{8}\right) \cdot \cos\left(\frac{3\pi}{8}\right) + \sin^{3}\left(\frac{\pi}{8}\right) \cdot \sin\left(\frac{3\pi}{8}\right)$ का मान ज्ञात कीजिए।

यदि $\sin x \cdot \cosh y = \cos \theta$ और $\cos x \cdot \sinh y = \sin \theta$ है,तो $\sin^2 x + \cosh^2 y = $

यह ज्ञात है कि $\sin \beta = \frac{4}{5}$ और $0 < \beta < \pi$. तब $\frac{\sqrt{3} \sin(\alpha + \beta) - \frac{2}{\cos(\pi/6)} \cos(\alpha + \beta)}{\sin \alpha}$ का मान क्या है?

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