设a,b,,c满足a+b+c=1,a2+b2+c2=2,a3+b3+c3=3则abc= &nb...

设a,b,,c满足a+b+c=1,a2+b2+c2=2,a3+b3+c3=3则abc= .
2025-02-26 08:40:13
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