Categories > coordinate > System of co-ordinates > The distance between the points $(a\cos \alpha ,\,a\sin \alpha )$ and $(a\cos \beta ,a\sin \beta )$is

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Question: The distance between the points $(a\cos \alpha ,\,a\sin \alpha )$ and $(a\cos \beta ,a\sin \beta )$is


1) $a\cos \frac{\alpha -\beta }{2}$
2) $2a\cos \frac{\alpha -\beta }{2}$
3) $a\sin \frac{\alpha -\beta }{2}$
4) $2a\sin \frac{\alpha -\beta }{2}$
Solution: Explanation: No Explanation
System of co-ordinates Distance between two points Section formulae

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