1.

If the diagonals of a parallelogram are bar(i)+5bar(j)-2bar(k) and -2bar(i)+bar(j)+3bar(k) then the lengths of its sides are

Answer»

`sqrt(8), sqrt(10)`
`sqrt(6), sqrt(14)`
`sqrt(5), sqrt(12)`
`sqrt(3), sqrt(12)`

Answer :B


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