AA^(-1)=I...(1)
A²-4A+2I=0
2I=4A-A²=A(4I-A)
A[(1/2)(4I-A)]=I...(2)
(2)等式兩端同乘A的反方陣
(1/2)(4I-A)=A^(-1)
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AA^(-1)=I...(1)
A²-4A+2I=0
2I=4A-A²=A(4I-A)
A[(1/2)(4I-A)]=I...(2)
(2)等式兩端同乘A的反方陣
(1/2)(4I-A)=A^(-1)
Users viewing this question
are also looking at these questions 😉
