જો $(1+\sqrt{1+x}) \tan x=1+\sqrt{1-x}$ હોય,તો $\sin 4x$ ની કિંમત શું થાય?

  • A
    $x$
  • B
    $-x$
  • C
    $4x$
  • D
    $-4x$

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જો $\tan \beta = \frac{\tan \alpha + \tan \gamma}{1 + \tan \alpha \tan \gamma}$ હોય,તો $\frac{\sin 2 \alpha + \sin 2 \gamma}{1 + \sin 2 \alpha \sin 2 \gamma} = $

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