当
时,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2476064878654390f44e3d40f940398a.png)
![](https://img.xkw.com/dksih/QBM/2012/3/29/1570822930931712/1570822936535040/STEM/dac566a8ca3d4baebdd85e0e9aaeadc7.png)
11-12高二下·浙江台州·阶段练习 查看更多[1]
(已下线)2011-2012学年浙江省临海市白云中学高二第二学期第一次月考数学试卷
更新时间:2016-12-01 17:50:21
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解答题-证明题
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较易
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解题方法
【推荐1】已知a,b是正实数,设
.求证:
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cfdd577f95eff3f5cd88c62e6617992.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/445131b515dac9c201f5958428f899f1.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8a601dee6a123ed7205acbda9fe7589.png)
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解答题-问答题
|
较易
(0.85)
解题方法
【推荐2】已知函数
.
(1)求不等式
的解集
;
(2)若
证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d45e0fa2f2c2607cd83dc911067239.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a93b7c1281a7005bbf163d7b2f1f4565.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a2b85186925658e66d8541a5645269e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aac4ed0bacbb939abf7363450af7854e.png)
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