If the position vectors of A, B are 2i - 9j - 4k, 6i - 3j + 8k then the unit vector in the direction of `vec(A)B` is

If the position vectors of A, B are 2bar(i)-9bar(j)-4bar(k), 6bar(i)-3bar(j)+8bar(k) then the unit vector in the direction of vec(AB) is

If the position vectors of A and B are 3i - 2j + k and 2i + 4j - 3k then |vec(A)B|

If the position vectors of A and B are 3i-2j+k and 2i+4j+3k then |vec AB| =

If a = i + j, b = j + k and c = i + k then a unit vector in the direction of a - 2b + 3c is

If a = 3i - 2j + k, b = -i + j + k then the unit vector parallel to the vector a + b is

The position vector of the centroid of the Delta ABC is 2i + 4j + 2k . If the position vector of the vertex A is 2i + 6j + 4k, then the position vector of midpoint of BC is a)2i + 3j + k b)2i + 3j - k c)2i - 3j - k d) -2i - 3j - k

If the position vectors of A, B, C are i + 2j + 3k, j + 2k, - i + k and vec(A)B = lambda vec(A)C then lambda =

For given vector, vec a = 2 hat i j +2 hat k and vec b = - hat i + hat j - hat k , find the unit vector in the direction of the vector vec a + vec b .