Question

A square matrix A is said to be singular if​

Answer 1

Answer:

if detA=0 then the square martix is saidto be singular matrix

Answer 2

A square matrix that is not invertible is called singular or degenerate. A square matrix is singular if and only if its determinant is zero. If A has rank m (m ≤ n), then it has a right inverse, an n-by-m matrix B such that AB = I m.