设矩阵X满足X-2A=B-X,其中
A=
(2-1
-19)
,B=
(0-2
-20)
求X.
X-2A=B-X, 2X=B+2A, 2X= (0 -2 -2 0) +2 (2 -1 -1 9) = (4 -4 -4 4) 所以X=1/2 (4 -4 -4 4) = (2 -2 -2 2)
设矩阵X满足X-2A=B-X,其中
A=
(2-1
-19)
,B=
(0-2
-20)
求X.
X-2A=B-X, 2X=B+2A, 2X= (0 -2 -2 0) +2 (2 -1 -1 9) = (4 -4 -4 4) 所以X=1/2 (4 -4 -4 4) = (2 -2 -2 2)