1.

The vector area of the parallelogram whose adjacent sides vec(i) + vec(j) + vec(k) and 2vec(i)-vec(j) + 2vec(k) is

Answer»

`3(VEC(i) +vec(k))`
`3(vec(i) -vec(k))`
`2vec(i) + vec(j)-2vec(k)`
`-2vec(i)-vec(j)-2vec(k)`

ANSWER :B


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