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Let vec(alpha),vec(beta),vec(gamma) be t...

Let `vec(alpha),vec(beta),vec(gamma)` be three unit vectors such that `vec(alpha).vec(beta)=vec(alpha).vec(gamma)=0` and the angle between `vec(beta)andvec(gamma)` is `30^(@)." Then "vec(alpha)` is

A

`2(vec(beta)xxvec(gamma))`

B

`-2(vec(beta)xxvec(gamma))`

C

`+-2(vec(beta)xxvec(gamma))`

D

`(vec(beta)xxvec(gamma))`

Text Solution

Verified by Experts

The correct Answer is:
C
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