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如图点A(2,1)在双曲线y=上,点P为y=的图象上另一点,PB⊥x轴于点B,那...
如图点A(2,1)在双曲线y=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101516173502447/SYS201311031015161735024009_ST/0.png)
上,点P为y=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101516173502447/SYS201311031015161735024009_ST/1.png)
的图象上另一点,PB⊥x轴于点B,那△POB的面积为
.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101516173502447/SYS201311031015161735024009_ST/images2.png)
考点分析:
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