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Let bara=a_(1)bari+a_(2)barj+a_(3)bark,barb=b_(1)bari+b_(2)barj+b_(3)barkbarc=c_(1)bari+c_(2)barj+c_(3)bark be three non-zero vectors such that barc be three non-zero vectors such that bara and barb. If theangle between bara and barb is pi//6 then abs({:(a_(1),a_(2),a_(3)),(b_(1),b_(2),b_(3)),(c_(1),c_(2),c_(3)):})^(2)=

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`1/4abs(BARA)^(2)ABS(barb)^(2)`
`3/4abs(bara)^(2)abs(barb)^(2)`

ANSWER :C


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