• 2022-06-12
    已知[tex=2.0x1.286]cdFQTIcX/k6W15SnnVIOSQ==[/tex]为三阶对称矩阵且满足[tex=7.571x1.286]UftoPCbY1vsscBWCv7WWdWTmPBSQuX1bXssS0ZKFAo0=[/tex];其中[tex=0.786x1.286]YggwMQ4w3PxfhkmL0NfgdQ==[/tex]为三阶单位矩阵 . 证明;(1)矩阵[tex=3.214x1.286]CxRh2MuWfyX9bh9PvBg47Q==[/tex]可逆,并求出[tex=4.929x1.286]UDCzTeZjplcUwcMi2zGvIfGEmkN+NtWm5jFlVbdJ7f4=[/tex];(2)若矩阵[tex=8.214x3.643]GGH5qazUqq7NUCYOcK6l4MoNKp6iMwMC6U8h1ew2xuMXF623jmjDH3Y+PeCZFHHxRawlm4maS6EPdXiK7Ep6RuByIf4EgILr6Js2A3n62/V5Gmr0XFZVgg/3HWGihKA9[/tex],求矩阵[tex=0.786x1.286]pi/GsQ3apuRt43V3XQq/tA==[/tex] . 
  • 举一反三