设[tex=3.143x1.214]gAxiAFTvl+RU0JS+PECeaA==[/tex]均为[tex=0.643x0.786]SBMIs+VUk7//BOpfqlQl0w==[/tex]阶方阵。证明:如果[tex=9.5x1.214]W2dGkjw6wIsT9Qzo6NQsEA==[/tex]则[tex=3.786x1.143]uvPNfd/8uJBE+kQIYUEsZA==[/tex]
举一反三
- 设[tex=2.0x1.214]IENxQEh5u4RdnCaqHm72Xg==[/tex]均为[tex=0.643x0.786]SBMIs+VUk7//BOpfqlQl0w==[/tex]阶方阵,[tex=0.786x1.0]XvHgf70VtK2FH5G93l0k3g==[/tex]为[tex=0.643x0.786]SBMIs+VUk7//BOpfqlQl0w==[/tex]阶单位阵,证明:若[tex=4.643x1.143]y+ElwUeCSdEkIPEcPLq9sg==[/tex],则[tex=2.286x1.143]hDwbx8oDu+irvDmY8tXjKg==[/tex]可逆。
- 设 [tex=0.643x0.786]SBMIs+VUk7//BOpfqlQl0w==[/tex] 阶方阵 [tex=0.786x1.0]Yn3GgEZev6SOu2r4v1WnCw==[/tex] 满足 [tex=6.786x1.357]qOjKwPZp315rjODBsGXBkw==[/tex],证明 [tex=10.286x1.357]AqKmw0fIqjE2TgqdSiIOJRLm2JbqMeRLxnTvdQnRbhA=[/tex] .
- 证明:对任意[tex=0.643x0.786]SBMIs+VUk7//BOpfqlQl0w==[/tex]阶矩阵[tex=0.786x1.0]Yn3GgEZev6SOu2r4v1WnCw==[/tex]和[tex=0.786x1.0]ri6gmnf1+J9dGqG5/1sV6A==[/tex],都有[tex=5.571x1.214]pJfFj2aCqUYDnZbV5Jb2/w==[/tex].
- 设 [tex=2.071x1.214]MmeklMP/j6saWqycN/i3Z6f4PxINUzvl/cZhR6Tpp74=[/tex] 均为[tex=0.643x0.786]SBMIs+VUk7//BOpfqlQl0w==[/tex] 阶方阵,证明 [tex=1.786x1.0]96v/QovsZC+SUffULwqQnvkECUDsFAQTkNLNhDaRrpw=[/tex] 与 [tex=1.786x1.0]kvRlRS1CLNU1fC2siJ4VO2nX6gBe0vc1kFMLW9VYZjM=[/tex] 有相同的特征值.
- 设[tex=0.643x0.786]SBMIs+VUk7//BOpfqlQl0w==[/tex]阶方阵[tex=0.786x1.0]Yn3GgEZev6SOu2r4v1WnCw==[/tex]的伴随矩阵为[tex=1.143x1.071]ay6FZhXvT2wM0bXjMxTOIw==[/tex],证明:[tex=4.786x1.5]BIh93n4rr/VbrKyEAPPe8tuiAVB4bN5bDQA2o6maWE8BHxKq8DCneRRsJJ7Py0WB[/tex]