1.

If the two adjacent sides of a parallelogram are given by hat(i)+2hat(j)+3hat(k) and -3hat(i)-2hat(j)+hat(k), then the lengths of the diagonals are

Answer»

`2, 6sqrt(5)`
`2sqrt(5), 6`
`2, 6`
`2, SQRT(5)`

ANSWER :B


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