$\cos 2x = -\frac{1}{2}$ के मुख्य हल हैं

  • A
    $x = \frac{\pi}{3}, x = \frac{2\pi}{3}$
  • B
    $x = \frac{\pi}{3}, x = \frac{5\pi}{6}$
  • C
    $x = \frac{2\pi}{3}, x = \frac{4\pi}{3}$
  • D
    $x = \frac{\pi}{6}, x = \frac{5\pi}{6}$

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समीकरण $2\sqrt{3} \cos \theta = \tan \theta$ में $\theta$ का व्यापक मान क्या है?

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समीकरण $\sin 2\theta + \cos 2\theta = -\frac{1}{2}$ के लिए $\theta \in \left( 0, \frac{\pi}{2} \right)$ में हलों की संख्या ज्ञात कीजिए।

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