Let bara,barb and barc be non-zero vecto...

Let `bara,barb` and `barc` be non-zero vectors such that `(baraxxbarb)xxbarc=1/3absbarbabsbarcbara`. If `theta` is the acute angle between the vectors `barb` and `barc` then `sintheta` equals to

A

`2/3`

B

`(sqrt2)/3`

C

`1/3`

D

`(2sqrt2)/3`

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The correct Answer is:

D

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