A) Perpendicular
B) Parallel
C) Angle between them is \[\frac{\pi }{4}\]
D) None of these
Correct Answer: A
Solution :
Mid point of \[(a\,\cos \alpha ,a\sin \alpha )\] and \[(a\cos \beta ,a\sin \beta )\] is \[P\,\left( \frac{a(\cos \alpha +\cos \beta )}{2},\frac{a(\sin \alpha +\sin \beta )}{2} \right)\]You need to login to perform this action.
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