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

If the vectors PQ= -3i + 4j + 4k and PR = 5i - 2j + 4k are the sides of a triangle PQR then the length of the median through P is a) sqrt14 b) sqrt15 c) sqrt17 d) sqrt18

If the vectors vec(AB)=3hati+4hatk and vec(AC)=5hati-2hatj-4hatk are the sides of a triangle ABC, then 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 bar A B=3 hat i+4 hat k and bar A C=5 hat i-2 hat j+4 hat k are the sides of a triangle ABC, then the length of the median through A is (1) sqrt(72) (2) sqrt(33) (3) sqrt(45) (4) sqrt(18)

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 :