The vectors AB = \(3 \hat{i}+4 \hat{k}\) and AC = \(A C=5 \hat{i}-2 \hat{j}+4 \hat{k}\) are the side of a ΔABC. The length of the median through A is
A. √18
B. √72
C. √33
D. √288
Answer:C
The vectors AB = \(3 \hat{i}+4 \hat{k}\) and AC = \(A C=5 \hat{i}-2 \hat{j}+4 \hat{k}\) are the side of a ΔABC. The length of the median through A is
A. √18 B. √72 C. √33 D. √288