If the vertices of a parallelogram ABCD are A ( 1,2,3) . B ( -1,-2,-1) and C (2,3,2) then find the
Channel: Doubtnut
Date: 2020-01-19

If the vertices of a parallelogram ABCD are A ( 1,2,3) . B ( -1,-2,-1) and C (2,3,2) then find the fourth vertex D.