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If the vectors vec(AB) = 3 hati + 4 hatk...

If the vectors `vec(AB) = 3 hati + 4 hatk and A vecC = 5 hati - 2 hatj + 4 hatk` are the side of the triangle ABC, then the length of the median through A is :

A

`sqrt72`

B

`sqrt33`

C

`sqrt45`

D

`sqrt18.`

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The correct Answer is:
B
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