先化简((x+1)/(x-1)+1/(x²-2x+1))÷x/(x-1),然后选取一个你喜欢的x的值代入计算.

来源：学生作业帮助网编辑：作业帮时间：2024/05/04 18:57:41

先化简((x+1)/(x-1)+1/(x²-2x+1))÷x/(x-1),然后选取一个你喜欢的x的值代入计算.
先化简((x+1)/(x-1)+1/(x²-2x+1))÷x/(x-1),然后选取一个你喜欢的x的值代入计算.

先化简((x+1)/(x-1)+1/(x²-2x+1))÷x/(x-1),然后选取一个你喜欢的x的值代入计算.
原式=[(x²)/(x-1)²][(x-1))/x]=x/(x-1)
当x=2时,原式=2

=（x+1)/(x-1)×(x-1)/x+1/(x-1)^2×（x-1)/x
=(x+1)/x+1/x(x-1)
=(x^2-1)/x(x-1)+1/x(x-1)
=x^2/x(x-1)

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