Which of the following homogeneous systems have a nontrivial solution?
5x+ y + 5z =0
−2x + 2y− 4z = 0
4x− 3y + 6z = 0
can someone please explain how you know
5x+ y + 5z =0
−2x + 2y− 4z = 0
4x− 3y + 6z = 0
can someone please explain how you know