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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Similar Questions

જો $\frac{\cos^4 \alpha}{\cos^2 \beta} + \frac{\sin^4 \alpha}{\sin^2 \beta} = 1$ હોય,તો $\left[ \frac{\cos^4 \beta}{\cos^2 \alpha} + \frac{\sin^4 \beta}{\sin^2 \alpha} \right]$ ની કિંમત શોધો (જ્યાં $[.]$ એ મહત્તમ પૂર્ણાંક વિધેય દર્શાવે છે).

જો $\sin x + \sin y = 3(\cos y - \cos x)$ હોય,તો $\frac{\sin 3x}{\sin 3y}$ ની કિંમત શોધો.

જો $\tan x + \tan \left( \frac{\pi }{3} + x \right) + \tan \left( \frac{2\pi }{3} + x \right) = 3,$ હોય,તો

જો $\cos A = \frac{\sqrt{3}}{2}$ હોય,તો $\tan 3A = $

$\frac{\cos A}{1 - \sin A} = $

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