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

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यदि $A = 130^\circ$ और $x = \sin A + \cos A$ है,तो

माना $S = \{\theta \in [0, 2\pi] : 8^{2 \sin^2 \theta} + 8^{2 \cos^2 \theta} = 16\}$ है। तो $n(S) + \sum_{\theta \in S} \left(\sec \left(\frac{\pi}{4} + 2\theta\right) \operatorname{cosec} \left(\frac{\pi}{4} + 2\theta\right)\right)$ का मान ज्ञात कीजिए।

यदि $\sin \theta + \cos \theta = 1$ है,तो $\sin \theta \cos \theta = $

$\cos ^2(x)+\cos ^2\left(x+\frac{\pi}{3}\right)+\cos ^2\left(x-\frac{\pi}{3}\right) = $

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