જો $\theta \in \left(\frac{\pi}{2}, \frac{3 \pi}{2}\right)$ હોય,તો $\sqrt{4 \cos^{4} \theta + \sin^{2} 2 \theta} + 4 \cot \theta \cos^{2} \left(\frac{\pi}{4} - \frac{\theta}{2}\right)$ ની કિંમત શોધો.

  • A
    $-2 \cot \theta$
  • B
    $2 \cot \theta$
  • C
    $2 \cos \theta$
  • D
    $2 \sin \theta$

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ધારો કે $S$ એ તમામ $\alpha \in \mathbb{R}$ નો ગણ છે જેથી સમીકરણ $\cos 2x + \alpha \sin x = 2\alpha - 7$ નો ઉકેલ મળે. તો $S$ બરાબર શું થાય?

જો $\cosh \alpha + \sinh \alpha = e^3$ અને $\sinh x = \frac{\alpha}{\alpha+1}$ હોય,તો $\tanh x =$

$\frac{2\sin \theta \tan \theta (1 - \tan \theta ) + 2\sin \theta \sec^2 \theta}{(1 + \tan \theta)^2} = $

જો $\cosh 2x = 199$ હોય,તો $\operatorname{coth} x =$

ગણ $\{x \in R: |\cos x| \geq \sin x\} \cap \left[0, \frac{3 \pi}{2}\right]$ એ . . . ને સમાન છે.

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