3个回答
展开全部
AX - 2X = A, 则 (A-2E)X = A, X = (A-2E)^(-1)A
[A-2E, A] =
[-1 -1 0 1 -1 0]
[ 0 -1 -1 0 1 -1]
[-1 0 -1 -1 0 1]
初等行变换为
[ 1 1 0 -1 1 0]
[ 0 1 1 0 -1 1]
[ 0 1 -1 -2 1 1]
初等行变换为
[ 1 0 -1 -1 2 -1]
[ 0 1 1 0 -1 1]
[ 0 0 -2 -2 2 0]
初等行变换为
[ 1 0 0 0 1 -1]
[ 0 1 0 -1 0 1]
[ 0 0 1 1 -1 0]
X = (A-2E)^(-1)A =
[ 0 1 -1]
[-1 0 1]
[ 1 -1 0]
[A-2E, A] =
[-1 -1 0 1 -1 0]
[ 0 -1 -1 0 1 -1]
[-1 0 -1 -1 0 1]
初等行变换为
[ 1 1 0 -1 1 0]
[ 0 1 1 0 -1 1]
[ 0 1 -1 -2 1 1]
初等行变换为
[ 1 0 -1 -1 2 -1]
[ 0 1 1 0 -1 1]
[ 0 0 -2 -2 2 0]
初等行变换为
[ 1 0 0 0 1 -1]
[ 0 1 0 -1 0 1]
[ 0 0 1 1 -1 0]
X = (A-2E)^(-1)A =
[ 0 1 -1]
[-1 0 1]
[ 1 -1 0]
本回答被提问者采纳
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
x=A/A-2,,,,,,A等于多少带进去就行,采纳
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询
广告 您可能关注的内容 |