(1) Write down a 3 × 3 matrix, call it A, which is not triangular (upper or lower) with nonzero deter- minant.
(2) By performing one row operation, change your matrix A into a matrix B which has determinant 4. (If your matrix A already has determinant 4, change it to one with determinant 5.)
(3) Compute AB and give the determinant of AB.
Get Answers For Free
Most questions answered within 1 hours.