Applied Mathematics 1411A/B Chapter Notes - Chapter 1.5: Elementary Matrix, Identity Matrix

A = [3 4 5 6] Express A as a product of elementary matrices. Express A^-1 as a product of elementary matrices.

Let A = Write A as a product of elementary matrices.

Problem 2 Let A = 1 3 7 2 i) Apply row operations to [A | 1] to find the inverse of A. i) Use the notation for elementary matrices in the textbook. sequence of row operations to express A1 as a product of elementary matrices, using the ii) Using i), express A explicitly as a product of elementary matrices (again using the textbook notation)