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`bar a=2 bar i+bar j-2bar k and bar b=bar i+bar j` if `bar c` is a vector such that `bar a* bar c=|bar c|,|bar c-bar a|=2sqrt2` and and the angle between`bar axxbar b and bar c` is `30^@`, then `|(bar a xx bar b)xxbar c|=`

A

`1//2`

B

3

C

`3//2`

D

6

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The correct Answer is:
C
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