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IF the magnitudes of vectors vec(A), vec...

IF the magnitudes of vectors `vec(A), vec(B)` and `vec(C )` are 6,8,10 units respectively and if `vec(A) + vec(B) = vec(C )`, then the angle between A and C is :

A

0

B

`45^(@)`

C

`pi//2`

D

`pi//4`

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The correct Answer is:
C
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