A square matrix is invertible iff it is non singular

A square matrix A is invertible iff det (A) is equal to (A) -1 (B) 0 (C) 1 (D) none of these

A square matrix A invertible iff det A is equal to

Show that "if a matrix A is invertible, then A is non-singular".

If A is a matrix such that there exists a square submatrix of order r which is non-singular and eveny square submatrix or order r + 1 or more is singular, then

If A is a matrix such that there exists a square submatrix of order r which is non-singular and eveny square submatrix or order r + 1 or more is singular, then

A square matrix A is said to be invertible if and only if A is a

If A,B are square matrices of order 3,A is non-singular and AB=O, then B is a a (a) null matrix (b) singular matrix (c) unit matrix (d) non-singular matrix

If A ,\ B are square matrices of order 3,\ A is non-singular and A B=O , then B is a (a) null matrix (b) singular matrix (c) unit matrix (d) non-singular matrix

If A ,\ B are square matrices of order 3,\ A is non-singular and A B=O , then B is a (a) null matrix (b) singular matrix (c) unit matrix (d) non-singular matrix