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如图,已知双曲线y=(k>0)经过直角三角形OAB斜边OB的中点D,与直角边AB...
如图,已知双曲线y=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101509805150687/SYS201311031015098051506022_ST/0.png)
(k>0)经过直角三角形OAB斜边OB的中点D,与直角边AB相交于点C.若△OBC的面积为3,则k=
.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101509805150687/SYS201311031015098051506022_ST/images1.png)
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