已知函数
,
.
(1)当
时,求满足
的实数
的范围;
(2)若
对任意的
恒成立,求实数
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99f2d4f45cb43d61dbb35f8280c4700a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a727f6e649ae3ad940215dbc8b0fc2bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041cd2291ceed0733b7a1baa3e3d740e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfe4e2dc2ecf2bbf2899ffba329848fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
13-14高三·黑龙江哈尔滨·阶段练习 查看更多[1]
(已下线)2015届黑龙江省哈尔滨市第三中学高三第一次测试理科数学试卷
更新时间:2016-12-03 05:56:57
|
【知识点】 指数函数最值与不等式的综合问题
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适中
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【推荐1】已知函数
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适中
(0.65)
名校
【推荐2】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/278ce3f5c0ac6214c0a537e86d67d100.png)
(1)当a=1时,求函数
在
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/278ce3f5c0ac6214c0a537e86d67d100.png)
(1)当a=1时,求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88caac8488926ea98339453f94a793f6.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b029e85e686623cdef977b2cb1f207a.png)
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适中
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【推荐3】设函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d17454adaf8557975cca0fbacba1aab2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/733b65d6c53f97ec82aace63f45f9203.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36f247866d4020ed309d4e4d121ce445.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d6243e93c41978871cb23d8e66148d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4849ea74ff5451b1d138f4a57619c80b.png)
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