1.

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

Answer»

`2/3`
`(SQRT2)/3`
`1/3`
`(2SQRT2)/3`

ANSWER :D


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