(A= left( egin{array}{ccc}
a_1 & b_1 & c_1 \
d_1 & e_1 & f_1 \
g_1 & h_1 & i_1 end{array}
ight))
(B= left( egin{array}{cc}
a_2 & b_2 \
d_2 & e_2 \
end{array}
ight))
(C= left( egin{array}{cc}
a_3 & b_3 \
d_3 & e_3 \
g_3 & h_3 end{array}
ight)) 为三个已知矩阵,不可逆。(X_{3 imes 2})为未知矩阵。
求解方程( AX+XB=C )
一般规律是什么?