... a11(a 22 a33− a 23 a 32 ) − a 12 (a 21 a33− a 23 a31)+a13(a 21 a 32 − a 22 a31)= a11a 22 a33− a11a 23 a 32 − a 12 a 21 a33+ a 12 a 23 a31+ a13a 21 a 32 − a13a 22 a31Thus, ... Thus,A. ^2 =a 2 11a 2 12 a 2 1na 2 21a 2 22 a 2 2n.........a 2 m1a 2 m2 a 2 mnTo square the matrix, that is, to compute A*A, the expression A ^2 can be ... = BAIn Matlab matrix multiplication is denoted by an asterisk.>> A = [2, 5,1; 0,3,-1]A= 25 103-1>> B = [1,0 ,2; -1,4, -2; 5 ,2, 1]B=1 02 -1 4 -2 521 >> C = A*BC= 22 2-5-8 10...