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If two vectors vec(a) and vec(b) are suc...

If two vectors `vec(a)` and `vec(b)` are such that `|vec(a)| = 2, |vec(b)|=3` and `vec(a).vec(b)` = 4, then `|vec(a) - 2vec(b)|` is equal to

A

`sqrt(2)`

B

`2sqrt(6)`

C

24

D

`2sqrt(2)`

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