已知曲线
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224826774618282/SYS201311012248267746182011_ST/0.png)
的一条切线的斜率为
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224826774618282/SYS201311012248267746182011_ST/1.png)
,则切点的横坐标为
.
考点分析:
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