Thread: an example of a matrix equation

let A be a 3x3 matrix. The matrix equation Ax= [1 1 1] must have a solution.




give an example when this is false.

Originally Posted by cottekr

let A be a 3x3 matrix. The matrix equation Ax= [1 1 1] must have a solution.


give an example when this is false.

A=0

EDIT: I've just seen your last post as well. You should have known to guess the zero matrix. Always try the simplest way first!