$x$ के उन मानों की संख्या क्या है जिनके लिए $\sin 2x + \cos 4x = 2$ है?

  • A
    $0$
  • B
    $1$
  • C
    $2$
  • D
    अनंत

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$\theta \in (0, \pi)$ के लिए $\sin \theta + \sin (4 \theta) + \sin (7 \theta) = 0$ के संभावित मान क्या हैं?

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समीकरण $\sqrt{3} \sin x + \cos x = 4$ के

समीकरण $2 \tan \theta - \cot \theta = -1$ का व्यापक हल है

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