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bar A = 2 hat i + 3 hat j and bar b = 3 ...

`bar A = 2 hat i + 3 hat j` and `bar b = 3 hat i + 5 hat j` Then `bar a xx bar b` is

A

`1 hat k`

B

`2 hat k`

C

`3 hat k`

D

`4 hat k`

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