大牛哥算出1/2 1/2=2/4，大家觉得我做对了吗？一起探讨学习
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大牛哥算出1/2 1/2=2/4，大家觉得我做对了吗？一起探讨学习
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If A=[[1,2,2],[2,1,2],[2,2,1]] ,then show that A^2-4A-5I=0 and hence find A^-1. - Mathematics | Shaalaa.com
If A=[[1,2,2],[2,1,2],[2,2,1]] ,then show that A^2-4A-5I=0 and hence …
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