1.

Let bara =2bari+3barj-bark, barb=bari-2barj+3bark. bareis a vector perpendicular to bothbara, barb and bare.(2bari-barj+bark) = -6thenbare=

Answer»

`3(-bari+barj+bark)`
`1/3(bari-barj+bark)`
`3(-bari-barj+bark)`
`3(bari-barj+bark)`

ANSWER :A


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