A) \[\cos A:\cos B:\cos \,C\]
B) \[\cos \frac{A}{2}:\cos \frac{B}{2}:\cos \,\frac{C}{2}\]
C) \[\sin \frac{A}{2}:\sin \frac{B}{2}:\sin \,\frac{C}{2}\]
D) \[\sin A:\sin B:\sin C\]
Correct Answer: B
Solution :
If three forces acting on a particle keep it in equilibrium, each is proportional to the sine of the angle between the other two, thenYou need to login to perform this action.
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