જો $\tan \beta = \cos \theta \tan \alpha$ હોય,તો ${\tan ^2}\frac{\theta }{2} = $

  • A
    $\frac{\sin (\alpha + \beta )}{\sin (\alpha - \beta )}$
  • B
    $\frac{\cos (\alpha - \beta )}{\cos (\alpha + \beta )}$
  • C
    $\frac{\sin (\alpha - \beta )}{\sin (\alpha + \beta )}$
  • D
    $\frac{\cos (\alpha + \beta )}{\cos (\alpha - \beta )}$

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Similar Questions

જો $y = 3\,\sin\,x + 4\,\cos\,x$ હોય,તો $y$ નું મહત્તમ મૂલ્ય શોધો.

જો $\theta$ અને $\phi$ એ $1^{st}$ ચરણમાં આવેલા ખૂણાઓ હોય,જેથી $\tan \theta = 1/7$ અને $\sin \phi = 1/\sqrt{10}$ હોય,તો:

$\tan 1^{\circ} \tan 2^{\circ} \ldots \tan 89^{\circ}$ નું મૂલ્ય શું છે?

જો $\tan \theta = \frac{1}{\sqrt{11}}$ અને $0 < \theta < \frac{\pi}{2}$ હોય,તો $\frac{\operatorname{cosec}^{2} \theta - \sec ^{2} \theta}{\operatorname{cosec}^{2} \theta + \sec ^{2} \theta}$ ની કિંમત શોધો.

$\frac{\sin 81^\circ + \cos 81^\circ}{\sin 81^\circ - \cos 81^\circ}$ ની કિંમત શોધો.

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