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If vectors vecP,vecQ and vecR have magni...

If vectors `vecP,vecQ` and `vecR` have magnitude 5,12 and 13 units and `vecP+vecQ=vecR`, the angle between `vecQ` and `vecR` is :

A

`cos^(-1)(5//12)`

B

`cos^(-1)(5//13)`

C

`cos^(-1)(12//13)`

D

`cos^(-1)(2//13)`

Text Solution

Verified by Experts

The correct Answer is:
C

`cos theta=12/13`
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