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Similar Questions

$\cos A + \cos (240^\circ + A) + \cos (240^\circ - A) = $

$(\cos \alpha+\cos \beta)^2+(\sin \alpha+\sin \beta)^2$ ની કિંમત શું છે?

સાબિત કરો કે: $(\cos x+\cos y)^{2}+(\sin x-\sin y)^{2}=4 \cos ^{2} \frac{x+y}{2}$

$\frac{1}{4} [\sqrt{3} \cos 23^\circ - \sin 23^\circ] = $

$\tan 70^{\circ} - \tan 20^{\circ} = a \cdot \tan 50^{\circ}$ માં $a$ ની કિંમત શોધો.

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