问题详情

A₁₁，A_i2，…，A_in分别是n阶行列式D中第i行元素a_i1，a_i2，…，a_in的代数余子式，则______．
A．a_i1A_i1+a_i2A_i2+…+a_inA_in=0 B．a_i1A_i1+a_i2A_i2+…+a_inA_in=D；
C．a_i1A_i1-a_i2A_i2+…+(-1)^n-1a_inA_in=0 D．a_i1A_i1-a_i2A₂+…+(-1)^n-1a_inA_in=D