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更新1:
a) Let n be ......greater than 1 and ......If (A^n)=0...... 我打番D有少少蒙既字出黎
matrices(2)
2011-08-12 1:23 am
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回答 (1)
2011-08-12 1:49 am
✔ 最佳答案
a) C(I - A) = C - CA= (I + A + A2 + ... + An-1) - (I + A + A2 + ... + An-1)A
= (I + A + A2 + ... + An-1) - (A + A2 + A2 + ... + An)
= I + An
= I
Hence C is the inverse of I - A
b)
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參考: 原創答案
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https://hk.answers.yahoo.com/question/index?qid=20110811000051KK00800