2 041 2 1 2 1 1 2 3 2 3 062 12 2 13 2.已知A= -10 4 ,B= 2 2 231-14 AB+2CT. 101 3.设AX+E=A2+X,且A= 020,求X. 101 4.求下列非齐次线性方程组的通解 x1-x2-4x3=-1 x2+X3=2 x1+x2-2x3=32 2 0 4 1 2 1 2 1 1 2 3 2 3 0 6 2 − 2.已知 1 2 2 1 3 120 1 0 4 , 2 2 , 5 6 7 2 3 1 1 4 A B C = − = = − ,求 2 T AB C + . 3.设 2 AX E A X + = + , 且 1 0 1 0 2 0 1 0 1 A = ,求 X . 4.求下列非齐次线性方程组的通解. 1 2 3 2 3 1 2 3 4 1 2 2 3 x x x x x x x x − − = − + = + − =