3/(x-1)²-3x/(x-1)² 计算

学习 时间:2026-04-07 16:41:11 阅读:5731
3/(x-1)²-3x/(x-1)² 计算

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潇洒的蓝天

2026-04-07 16:41:11

3/(x-1)²-3x/(x-1)²=(3-3x)/(x-1)²=3(1-x)/(1-x)²=3/(1-x)