I need some help here... I've got the following assignment to do Prove that if M>N then any system of N homogeneous equations in M unknowns has many solutions. I am a bit stuck with this one. I thought about creating a MxN Matrix and to display the determinant with 1's. and then say about the remaining colums after the rows with leading 1's stop (r = M-N), that they can represented by any value so there are many solutions is that correct?