名校
解题方法
1 . 已知直线
恒过定点
,若正实数a,b满足
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8dca2f7cc1bce01fb9d161f7da6d0e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f9fd8cfcd9d93b09288e353ea1997f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/605dc2a3284724868631b8b396f48fad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
A.9 | B.8 | C.7 | D.6 |
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