- #1
superdave
- 150
- 3
Homework Statement
Prove: A 2x2 matrix is nonsingular if and only if the determinant != 0
The Attempt at a Solution
I need to prove this, using logic and maybe the theorem that a n x n matrix is nonsingular if and only if it is row equivalent to I_n.
I could use a push in the right direction. I need to show a proof for both ways, as it is an if and only if statement.