1.

If bar(a)=(1,1,1),bar(b)=(4,-2,3) and bar( c )=(1,-2,1)then the vector of magnitude 6 in the direction of 2bar(a)-bar(b)+3bar( c ) is ……………..

Answer»

`((1)/(3),(-2)/(3),(2)/(3))`
(2, -4, 4)
`(-2, 4, -4)`
`((-1)/(3),(2)/(3),(-2)/(3))`

Answer :B


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