A^3 = (αβ^T)^3 = αβ^Tαβ^Tαβ^T = α(β^Tα)^2β^T
= (β^Tα)^2 αβ^T
= 2^2 *
1 0 1
2 0 2
1 0 1
=
4 0 4
8 0 8
4 0 4
线性代数题,请高人指教!
A^3 = (αβ^T)^3 = αβ^Tαβ^Tαβ^T = α(β^Tα)^2β^T
= (β^Tα)^2 αβ^T
= 2^2 *
1 0 1
2 0 2
1 0 1
=
4 0 4
8 0 8
4 0 4