The vectors ` vec AB = 3 hat i + 4 hat k` and `vec AC = 5 hat i - 2 hat j + hat k` are the sides of a triangle ABC. The length of the median through A is -

If the vector vec(AB) = 3hat(i) + 4hat(k) and vec(AC) = 5hat(i) - 2hat(j) + 4hat(k) are the sides of a triangle ABC, then the length of the median through A is-

If the vectors vec(A) B = 3 hat(i)+4 hat (k) and vec(AC) = 5 hat(i)-2 hat(j)+4hat(k) are the sides of a triangle ABC, then the length of the median through A is

If the vectors vec(A) B = 3 hat(i)+4 hat (k) and vec(AC) = 5 hat(i)-2 hat(j)+4hat(k) are the sides of a triangle ABC, then the length of the median through A is

( The vector )/(AB)=3hat i+4hat k and bar(AC)=5hat i-2hat j+4hat k are the sides of a triangle ABC.The length of the median through A is

If the vectors 2hat j +hat k and 3 hat i- hat j +4 hatk represent the two sides AB and AC respectively of a triangle ABC , then the length of the median through A is,

The unit vector perpendicular to vec A = 2 hat i + 3 hat j + hat k and vec B = hat i - hat j + hat k is

If the vectors AB = hat(i) + 3 hat(j) + 4 hat(k) , AC = 5 hat(i) + hat(j) + 2 hat(k) are two sides of a triangle ABC, whose centroid is G, then |AG|=