homogenous Definition and 1 Threads

TL;DR Summary: I have to find a system of equations with this solution ## {(1,2,0,3)^T+t(1,1,1,-2)^T+s(1,-1,3,0)^T;s,t \in \mathbb{R}} ## when we know that matrix of this equation has: 1. two non-zero rows 2. 3 non-zero rows. My idea is that I could somehow use the fact that...