c Kendra Kilmer August 18, 2011Definition:Theidentity matrixof sizenhasnrows andncolumns. It has 1’s along the main diagonaland 0’s everywhere else.A matrix multiplied by the appropriate identity matrix results in the orignal matrix.Example 3:Mulitply the matrix below by the appropriate identiy matrix.124132Example 4:The Yummy Cake Company makes three types of cakes: Angel Food, Italian Cream, and Choco-late. The company produces its cakes in College Station, Santa Cruz, and Austin using two main ingredients,sugar and flour.a)Each kilogram of Angel Food requires 0.1 kg of sugar and 0.5 kg of flour. Each kilogram of Italian Creamrequires 0.6 kg of sugar and 0
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