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If vecA=vecB+vecC and magnitude of vecA...

If `vecA=vecB+vecC `and magnitude of `vecA, vecB` and `vecC` are 5, 4 and 3 kmt, the angle between `vecA` and `vecC` is

A

`cos^-1(3/5)`

B

`cos^-1 (4/5)`

C

`pi/2`

D

`sin^-1(3/4)`

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The correct Answer is:
A
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