In a `Delta` ABC, if `vec(AB) = 3 hati + 4 hatk, vec(AC) = 5 hati + 2 hatj + 4hatk ,` then the length of median through A , is

In a `Delta` ABC, if `vec(AB) = 3 hati + 4 hatk, vec(AC) = 5 hati + 2 hatj + 4hatk ,` then the length of median through A , is
A. `3sqrt(2)`
B. `6sqrt(2)`
C. `5sqrt(2)`
D. `sqrt(33)`

In a `Delta` ABC, if `vec(AB) = 3 hati + 4 hatk, vec(AC) = 5 hati + 2 hatj + 4hatk ,` then the length of median through A , is

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