જો $\cos \theta = \frac{\cos \alpha - \cos \beta}{1 - \cos \alpha \cos \beta}$ હોય,તો $\tan \frac{\theta}{2}$ ની એક કિંમત શું થાય?

  • A
    $\cot \frac{\beta}{2} \tan \frac{\alpha}{2}$
  • B
    $\tan \alpha \tan \frac{\beta}{2}$
  • C
    $\tan \frac{\beta}{2} \cot \frac{\alpha}{2}$
  • D
    $\tan ^2 \frac{\alpha}{2} \tan ^2 \frac{\beta}{2}$

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Similar Questions

જો $5 \sinh x - \cosh x = 5$ હોય,તો $\tanh x$ ની એક કિંમત શોધો.

જો $2y \cos \theta = x \sin \theta$ અને $2x \sec \theta - y \csc \theta = 3$ હોય,તો $x^2 + 4y^2 = $

સમીકરણ $\frac{1}{\sin(\frac{\pi}{n})} = \frac{1}{\sin(\frac{2\pi}{n})} + \frac{1}{\sin(\frac{3\pi}{n})}$ નું સમાધાન કરતું $n > 3$ નું ધન પૂર્ણાંક મૂલ્ય શોધો.

જો $\sin \theta = \frac{2t}{1+t^2}$ અને $\theta$ બીજા ચરણમાં હોય, તો $\cos \theta$ ની કિંમત શું થાય?

$\cos ^4 \frac{\pi}{8}+\cos ^4 \frac{2 \pi}{8}+\cos ^4 \frac{3 \pi}{8}+\cos ^4 \frac{4 \pi}{8}+\cos ^4 \frac{5 \pi}{8}+\cos ^4 \frac{6 \pi}{8}+\cos ^4 \frac{7 \pi}{8}+\cos ^4 \frac{8 \pi}{8}$ ની કિંમત શોધો.

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