સમીકરણ $\cos^2 \theta + \sin \theta + 1 = 0$ નો ઉકેલ કયા અંતરાલમાં આવે છે?

  • A
    $\left( -\frac{\pi}{4}, \frac{\pi}{4} \right)$
  • B
    $\left( \frac{\pi}{4}, \frac{3\pi}{4} \right)$
  • C
    $\left( \frac{3\pi}{4}, \frac{5\pi}{4} \right)$
  • D
    $\left( \frac{5\pi}{4}, \frac{7\pi}{4} \right)$

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Similar Questions

$\tan 2\theta \tan \theta = 1$ નો ઉકેલ શોધો.

$x \in [0, 2\pi]$ માટે $\tan(x) + \sec(x) = \sqrt{3}$ ઉકેલો.

જો $\cos p\theta = \cos q\theta$ અને $p \neq q$ હોય,તો

સમીકરણ $\cos 2 \theta \cos \frac{\theta}{2} + \cos \frac{5 \theta}{2} = 2 \cos^3 \frac{5 \theta}{2}$ ના અંતરાલ $\left[-\frac{\pi}{2}, \frac{\pi}{2}\right]$ માં ઉકેલોની સંખ્યા કેટલી છે?

જો $2(\sin x - \cos 2x) - \sin 2x(1 + 2\sin x) + 2\cos x = 0$ હોય,તો:

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