Question

identify the singular and non singular matrix
1. 1 4 9
4 9 16
9 16 25

2. 1 2 3
4 5 6
-2 -4 -6

Answer 1

singluar matrix=if determinant is equals to 0
non singluar matrix=if determinant not equals to 0
1.det=-8 so it is non singluar
2.det=0 so it is singluar