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Let veca, vecb, and vecc be three non-ze...

Let `veca, vecb, and vecc` be three non-zero vectors such that no two of them are colinear and
`(veca xx vecb) xx vecc=1/3 |vecb||vecc|veca.`
If `theta` is the angle between the vectors `vecb and vecc,` then a value of `sin theta` is :

A

`(2sqrt2)/(3)`

B

`(-sqrt2)/(3)`

C

`(2)/(3)`

D

`(-2sqrt3)/(3).`

Text Solution

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The correct Answer is:
A
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