If (2,1,-3), (-2,3,4) & (1,2,2) are the midpoints of the sidesBC, CA, AB of a triangle ABC, then the coordinates of it’s vertex A are
If (2,1,-3), (-2,3,4) & (1,2,2) are the midpoints of the sides
BC, CA, AB of a triangle ABC, then the coordinates of it’s vertex A are