જો $\tan \frac{\theta}{2} = t$ હોય,તો $\frac{1 - t^2}{1 + t^2}$ ની કિંમત શું થાય?

  • A
    $\cos \theta$
  • B
    $\sin \theta$
  • C
    $\sec \theta$
  • D
    $\cos 2\theta$

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Similar Questions

$\cos \frac{\pi}{7} \cos \frac{2\pi}{7} \cos \frac{3\pi}{7} =$

જો $\tan \alpha = \frac{1}{7}$ અને $\tan \beta = \frac{1}{3}$ હોય,તો $\cos 2\alpha = $

જો $90^{\circ} < A < 180^{\circ}$ અને $\sin A = \frac{4}{5}$ હોય,તો $\tan \frac{A}{2} =$

જો $\cos \theta = \frac{-3}{5}$ અને $\pi < \theta < \frac{3 \pi}{2}$ હોય,તો $\tan \left(\frac{\theta}{2}\right) = $

$\tan \left(\frac{7 \pi}{8}\right)$ ની કિંમત શોધો.

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