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Let vec(a),vec(b),andvec(c) be three vec...

Let `vec(a),vec(b),andvec(c)` be three vectors having magnitudes 1,1,2 respectively.
If `vec(a)xx(vec(a)xxvec(c))+vec(b)=0,` then the acute angle between `vec(a)andvec(c)` is ……………

A

0

B

`(pi)/(3)`

C

'(pi)/(6)'

D

`(2pi)/(3)`

Text Solution

Verified by Experts

The correct Answer is:
C, D
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