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Let vec(a).vec(b) and vec(c) be three un...

Let `vec(a).vec(b) and vec(c)` be three unit vectors such that `vec(a) xx (vec(b) xx vec(c)) = (sqrt3)/(2) (vec(b) + vec(c))`. If `vec(b)` is not parallel to `vec(c)`, then the angle between `vec(a) and vec(b)` is

A

`(3pi)/(4)`

B

`(pi)/(2)`

C

`(2pi)/(3)`

D

`(5pi)/(6)`

Text Solution

Verified by Experts

The correct Answer is:
D
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