化简[1-2/(x+1)]÷1/(x²-1)
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/29 08:58:27
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化简[1-2/(x+1)]÷1/(x²-1)
化简[1-2/(x+1)]÷1/(x²-1)
化简[1-2/(x+1)]÷1/(x²-1)
[1-2/(x+1)]÷1/(x²-1)
=[(x-1)/(x+1)]*(x²-1)
=(x-1)²
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来源:学生作业帮助网 编辑:作业帮 时间:2024/07/29 08:58:27
化简[1-2/(x+1)]÷1/(x²-1)
化简[1-2/(x+1)]÷1/(x²-1)
化简[1-2/(x+1)]÷1/(x²-1)
[1-2/(x+1)]÷1/(x²-1)
=[(x-1)/(x+1)]*(x²-1)
=(x-1)²