设N阶方阵A满足A^2-A-3I=0,怎么得出A-I可逆
设N阶方阵A满足A^2-A-3I=0,怎么得出A-I可逆
设n阶方阵a满足a^2-2i=0,试证方阵a-i可逆
设n阶方阵A满足A^2-A-2i=0 证明则必有A-i可逆
设n阶方阵A满足A²-A-3I=0,求证A-2I和A+1都可逆
设A是n阶方阵,满足A*A-A-2i=0,证明A-2i与A+i不同时可逆
设方阵A满足A^-3A+I=0 试证A可逆
设A为n阶方阵,A平方+3A-I=0,证明(A-I)可逆,并求其值
设n阶方阵A满足A^2-A-2E=0怎么证明A-E可逆?
设方阵A满足A^2-A-2I=0,证明:A和A+2I都可逆
已知n阶方阵A,满足A^3+A^2-2A=0,I是n阶单位阵,证明矩阵A+I必可逆
设n阶方阵A满足A^2=3A,证明:A-4I可逆,并求出其逆矩阵
设n阶方阵A满足A*A-A-2E=0,证明A和E-A可逆