计算N阶行列式:11...1(-n)11...(-n)1............1(-n)..11(-n)1...11
计算N阶行列式:11...1(-n)11...(-n)1............1(-n)..11(-n)1...11
1
计算N阶行列式:11...1(-n)11...(-n)1............1(-n)..11(-n)1...11