已知:x+y+z=1,x2+y2+z2=2,x3+y3+z3=3,试求:(1)xyz的值;(2)x4+y4+z4的值. 更新时间:2024-04-27 22:10:14 问题描述:已知:x+y+z=1,x2+y2+z2=2,x3+y3+z3=3,试求: (1)xyz的值; (2)x4+y4+z4的值.