- #1
fleeceman10
- 14
- 0
Homework Statement
I think I have broken maths. I am reducing a matrix to row echelon form to find the determinant. The matrix I will show is nearly in the desired form
Homework Equations
1 -3 -2 1
0 1 2 -1
0 0 1 -0.8
0 0 1 0
The Attempt at a Solution
As it stands, the determinant is 0.8. However subtracting the 4th row from the 3rd row changes the determinant to -0.8. I thought adding multiples of one row to another left the determinant unchanged. So why hasn't it? Thanks for answers.