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If vec(a)(1) and vec(a)(2) are two non c...

If `vec(a)_(1) and vec(a)_(2)` are two non collinear unit vectors and if `|vec(a)_(1) + vec(a)_(2)| = sqrt3` then the value of `(vec(a)_(1) - vec(a)_(2)).(2vec(a)_(1) + vec(a)_(2))` is:

A

2

B

`3//2`

C

1//2`

D

1

Text Solution

Verified by Experts

The correct Answer is:
C
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