- #1
underacheiver
- 12
- 0
Homework Statement
Find the rank of A =
{[1 0 2 0]
[4 0 3 0]
[5 0 -1 0]
[2 -3 1 1]}
Homework Equations
The Attempt at a Solution
i row reduced A to be:
{[1 0 0 0]
[0 1 0 -1/3]
[0 0 1 0]}
where do i go from here?