Question

矩阵,设A=[第一行1 2第二行-1 0],f是二乘二的(x)=x2-3x+2求f(A)

Answer 1

f(A) = A^2-3A+2E =

-1 2

-1 -2

- 3*

1 2

-1 0

+2*

1 0

0 1

=

-2 -4

2 0