Question 1202834
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{{{ (matrix(2,3, 1,-1,x, y, 2, -3))^T = (matrix(3,2, 1, y, -1, 2, x, 3)) }}}

{{{ (matrix(2,3, 0,1,-2,3,4,2)) * (matrix(3,2,1,y,-1,2,x,3)) = (matrix(2,2,0+1*(-1)+(-2)x, 0*y+1*2+(-2)*3, 3*1+4*(-1)+2x, 3*y+4*2+2*3)) = (matrix(2,2,-2x-1, -4, 2x-1, 3y+14)) }}}