Question

Matrix A= [1 2 5; 2 -1 3; 1 1 -1] by using matrix multiplication how to find A^2=AA?

Answer 1

http://www.wolframalpha.com/input/?i=matrix+multiplication+calculator&f1= {{1%2C2%2C5}%2C{2%2C-1%2C3}%2C{1%2C1%2C-1}}&f=MatricesOperations.theMatrix1_{{1%2C2%2C5}%2C{2%2C-1%2C3}%2C{1%2C1%2C-1}}&f2={{1%2C2%2C5}%2C{2%2C-1%2C3}%2C{1%2C1%2C-1}}&f=MatricesOperations.theMatrix2_{{1%2C2%2C5}%2C{2%2C-1%2C3}%2C{1%2C1%2C-1}}&a=*FVarOpt.1-_**-.***MatricesOperations.theMatrix3---.*--