高等数学'矩阵'把图片上的矩阵化为最简形矩阵'100分'谢谢了
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此题是求逆矩阵。
(A, E) =
[ 0 -2 1 1 0 0]
[ 3 0 -2 0 1 0]
[-2 3 0 0 0 1]
初等行变换为
[ 1 -3/2 0 0 0 -1/2]
[ 0 -2 1 1 0 0]
[ 0 9/2 -2 0 1 3/2]
初等行变换为
[ 1 0 -3/4 -3/4 0 -1/2]
[ 0 1 -1/2 -1/2 0 0]
[ 0 0 1/4 9/4 1 3/2]
初等行变换为
[ 1 0 0 6 3 4]
[ 0 1 0 4 2 3]
[ 0 0 1 9 4 6]
则 A^(-1) =
[6 3 4]
[4 2 3]
[9 4 6]
(A, E) =
[ 0 -2 1 1 0 0]
[ 3 0 -2 0 1 0]
[-2 3 0 0 0 1]
初等行变换为
[ 1 -3/2 0 0 0 -1/2]
[ 0 -2 1 1 0 0]
[ 0 9/2 -2 0 1 3/2]
初等行变换为
[ 1 0 -3/4 -3/4 0 -1/2]
[ 0 1 -1/2 -1/2 0 0]
[ 0 0 1/4 9/4 1 3/2]
初等行变换为
[ 1 0 0 6 3 4]
[ 0 1 0 4 2 3]
[ 0 0 1 9 4 6]
则 A^(-1) =
[6 3 4]
[4 2 3]
[9 4 6]
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