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(2009•烟台)设a>b>0,a2+b2-6ab=0,则的值等于 .
(2009•烟台)设a>b>0,a
2+b
2-6ab=0,则
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021230854470698013/SYS201310212308544706980013_ST/0.png)
的值等于
.
考点分析:
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