• 2022-06-29
    设[tex=0.786x1.0]kEam2pLJe4uAYVdcny2W5g==[/tex]、[tex=0.786x1.0]EsJDtGYVBcAkNM+hi9jDJg==[/tex]都是[tex=0.643x0.786]/he/ol8BkDuTTL9yMPtH4Q==[/tex]阶方阵,则等式[tex=10.071x1.5]+wFYV85f7r7kYYGiscOIk7PQ88zM9dpTKP4LmpA+N9Zbpm4P9uurJ3I/fXCfTyQF[/tex]成立的充分必要条件是[input=type:blank,size:6][/input].