જો $\sin A = n \sin B$ હોય,તો $\frac{n - 1}{n + 1} \tan \frac{A + B}{2} = $

  • A
    $\sin \frac{A - B}{2}$
  • B
    $\tan \frac{A - B}{2}$
  • C
    $\cot \frac{A - B}{2}$
  • D
    આમાંથી કોઈ નહીં

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બધા $\theta$ માટે,$\sqrt{\frac{1+\sin \theta}{1-\sin \theta}}$ ની કિંમત શું થાય?

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જો $(1+\tan ^{2} \theta)=\frac{625}{49}$ અને $\theta$ લઘુકોણ હોય,તો $\sqrt{\sin \theta+\cos \theta}$ ની કિંમત શું થાય?

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$\log _{\frac{1}{8}\csc^2 \frac{\pi}{8}} \sin^2 \frac{3\pi}{8}$ ની કિંમત શોધો.

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