Question
Maths
Oct. 1, 2018, 10:24 p.m.
Answer
solve for X and Y if 10 upon X + Y + 2 upon x-y=4 and15 upon X + Y - 15 upon x minus y = - 2
Show that the points whose position vectors are i ̂ +2j ̂+3k ̂,-2i ̂ +3j ̂+5k ̂ and 7 i ̂ -k ̂ are collinear
