Question 176529
2EA: I am going to assume the A is a 2x2 matrix because in order for E which is a 1x2 matrix, to be multiplied by another matrix, the other matrix rows must be 2
:
<b>2</b>{{{(matrix(1,2,1,2))}}}={{{(matrix(1,2,2,4))}}}{{{(matrix(2,2,3,0,2,-1))}}}={{{(matrix(1,2,-2,-4))}}}