Recent content by gracelette

Ooops. I guess this is what happens when I try do maths at obscene times of day. Thankyou, i worked it out now!

Homework Statement given the planes with equations: x + y + 7z = -7 2x + 3y + 17z = -16 x + 2y + (a^2 + 1) z = 3a find values for the constant a for which: -there are no solutions -the planes meet in a line. in this case find the parametric equation of the line -meet at a point. then find the...