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a is perpendicular to both b and c . The...

a is perpendicular to both b and c . The angle between b and c is `(2 pi)/(3)`. If |a| = 2, |b| = 3, |c| = 4, then c. `(a xx b)` is equal to

A

`18 sqrt(3)`

B

`12 sqrt(3)`

C

`8 sqrt(3)`

D

`6 sqrt(3)`

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b
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