Inverses by row reduction
What an inverse is and why it is unique, the two by two formula, Gauss-Jordan on the augmented identity, the reversal rule for products, and why elimination usually beats inversion.
About 30 minutes7 activities Paper packet
What an inverse is and why it is unique, the two by two formula, Gauss-Jordan on the augmented identity, the reversal rule for products, and why elimination usually beats inversion.
About 30 minutes7 activities Paper packet