1.

For any vector vec(a), the value of (vec(a) xx vec(i))^(2) + (vec(a) xx vec(j))^(2) + (vec(a) xx vec(k))^(2)=

Answer»

`4vec(a)^(2)`
`2vec(a)^(2)`
`VEC(a)^(2)`
`3vec(a)^(2)`

ANSWER :B


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