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If vec (OA) = i+2j+3k, vec (OB) = 3i+j-2...

If `vec (OA) = i+2j+3k, vec (OB) = 3i+j-2k` and `vec (OC) = 2i-3j+k` then `vec (AB) . vec (AC) =`

A

15

B

17

C

0

D

none of these

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A
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