线性代数矩阵的运算

2025-06-21 23:03:55
推荐回答(1个)
回答1:

(4) BA = B + 2E, B(A-E) = 2E, B = 2 (A-E)^(-1) = 2*
[1/2 -1/2]
[1/2 1/2]
B =
[1 -1]
[1 1]