• 2022-06-11
    已知[tex=0.786x1.0]b4HkKtHXeHofHX/gJc8Agg==[/tex]为[tex=0.643x0.786]/he/ol8BkDuTTL9yMPtH4Q==[/tex]阶方阵,且满足[tex=6.5x1.357]qfC3IrsF9PDWRsclXa2xR5TLl7rIKgssGTDOLh4W4i4=[/tex],(1) 证明: [tex=2.786x1.143]Vg0JrO2zCWkljWxwLR2Fqw==[/tex]可逆,并求[tex=4.071x2.071]L5k9EppZD8Z0CSebQje/p3ONIhXwVh6YH3R3KoB/mDc=[/tex]; (2) 若[tex=2.643x1.357]h0pLE8vvleI3SS/lZLfCsw==[/tex],求[tex=3.857x1.357]+/LkfOaF0X/41zjACjFdtw==[/tex]的值. 
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