How do you find the determinant of #((0, 1, 2, 3), (0, 0, 2, 0), (3, 10, 12, 20), (0, 0, 0, 4))#?
1 Answer
given by
and
is given by
and
is given by
In fact you can develop on what line or column you want, find one which have most
Then remember formula
Complex ? not really
here you develop the determinant in line because
here it's simple,
repeat that until you have