How do you know if a matrix does not have an inverse?

Updated: 28th October 2019

If the determinant of the matrix is zero, then it will not have an inverse; the matrix is then said to be singular. Only non-singular matrices have inverses. Find the inverse of the matrix A = ( 3 1 4 2 ). result should be the identity matrix I = ( 1 0 0 1 ).

Updated: 28th October 2019

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