• 2022-05-30
    已知三元二次型[tex=4.357x1.286]8LqIrrbMnuf36gP3V8P3wNBWuFDsr1qEt6YD/KIVpE4=[/tex]中,矩阵[tex=0.786x1.286]pi/GsQ3apuRt43V3XQq/tA==[/tex]的各行元素之和为6 .  且满足[tex=3.571x1.286]Mu5slPA18iF6aWbN9sv0mA==[/tex],其中[tex=10.143x3.643]DgXZT9CtCPAglTYwc4pEdWrrVRtVC5KfIahguxbvsqH+zkf/xxfaSNs+8TXNzHyuZwLCSvJtOZ8NYro3NnTlafymMyeA6EHzwh4sTLEMS8/d94S7uTg+SXu51zxifdPh[/tex],求正交变换化二次型[tex=0.5x1.214]0K9Xf7VHWdVeOrSYAKIm6Q==[/tex]为标准形,并写出所作的正交变换 . 
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