જો $\sin \theta + \sin \phi = a$ અને $\cos \theta + \cos \phi = b$ હોય,તો $\tan \frac{\theta - \phi}{2}$ ની કિંમત શોધો.

  • A
    $\sqrt{\frac{a^2 + b^2}{4 - a^2 - b^2}}$
  • B
    $\sqrt{\frac{4 - a^2 - b^2}{a^2 + b^2}}$
  • C
    $\sqrt{\frac{a^2 + b^2}{4 + a^2 + b^2}}$
  • D
    $\sqrt{\frac{4 + a^2 + b^2}{a^2 + b^2}}$

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Similar Questions

જો $\tan \frac{A}{2} = \frac{3}{2}$ હોય,તો $\frac{1 + \cos A}{1 - \cos A} = $

જો $A + B + C = \pi$ $(A, B, C > 0)$ અને ખૂણો $C$ ગુરુકોણ હોય,તો:

$\cos 2(\theta + \phi ) - 4\cos (\theta + \phi )\sin \theta \sin \phi + 2{\sin ^2}\phi = $

$\frac{{\sin (B + A) + \cos (B - A)}}{{\sin (B - A) + \cos (B + A)}} = $

જો $\tan \theta = \sqrt{\frac{3}{2}}$ હોય,તો અનંત શ્રેણી $1 + 2(1 - \cos \theta) + 3(1 - \cos \theta)^2 + 4(1 - \cos \theta)^3 + \dots \infty$ નો સરવાળો કેટલો થાય?

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