I expanded across the first row.
You should be able to do this one by using 1 and 3 as an outline.
Definition:
The determinant of an n x n matrix A is defined as
where
are the cofactors associated with the first row expansion.
I expanded across the first row.
You should be able to do this one by using 1 and 3 as an outline.
Definition:
The determinant of an n x n matrix A is defined as
where
are the cofactors associated with the first row expansion.