Here are the steps to do this. While the range is highlighted press the F2 key. The product AB should be in the selected range. Place these in appropriate cells on your worksheet, making sure you label them, and then use the computer to form the product AB or BA, as above, and label the answer of the product that works. Form both the products AB and BA, labelling both answers.
Video City has two stores in town.
Set up a matrix product that represents the total revenue for each store. Evaluate the product to find the total revenue of each store. Label your answers. Now we will compute the inverse of a matrix. To simplify instructions we assume you are on a clean worksheet.