If `vec(AB) = 2 hati + hatj – 3hatk` and the coordinates of `A` are `(1, 2, -1),` then the coordinates of `B` are

If vec(AB) =3 hati+ 2 hatj- hatk and the coordinate of A are (4,1,1), then find the coordinates of B.

6). If vec P Q=3 hat i+2 hat j- hat k and the coordinates of P are (1,-1,2), find the coordinates of Qdot (7). prove that the points hati-hatj,4hati-3hatj+hatk,2hati-4hatj+5hatk are the vertices of a right angled triangle.

If vec(AB) = (2hati + hatj - 3hatk) and A(1,2,-1) is the given point, find the coordinates of B.

If vec a=2hati+3hatj-hatk , then |vec a| is :

If vec(A) = hati + 3hatj + 2hatk and vec(B) = 3hati + hatj + 2hatk , then find the vector product vec(A) xx vec(B) .

If vec(BA) = 3hati+2hatj+hatk and the position vector of B is hati+3hatj-hatk then the position vector A is

If vec(OA) = hati - 2hatk and vec(OB) = 3 hati - 2hatj then the direction cosines of the vectore vec(AB) are

If vec(A) = 2hati +3 hatj +hatk and vec(B) = 3hati + 2hatj + 4hatk , then find the value of (vec(A) +vec(B)) xx (vec(A) - vec(B))