1. Systems of Linear Equations....

If (A|b) is in reduced row echelon form, prove that A is also in reduced row echelon form.

2. Originally Posted by Qt3e_M3
If (A|b) is in reduced row echelon form, prove that A is also in reduced row echelon form.
What is the definition of "reduced row echelon form"?

3. Originally Posted by HallsofIvy
What is the definition of "reduced row echelon form"?
It is when you have leading ones..I'm just not sure what to do to prove the question