设函数
.
(1)若函数
在定义域上为增函数,求实数
的取值范围;
(2)在(Ⅰ)的条件下,若函数
,
使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77b13d682537b65c0237b44e6cce2903.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)在(Ⅰ)的条件下,若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ee75e5b3524724cce67c05de36efea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06815ba9193377270c3e6c481e761d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d397e5933785ec425cdf7bf0b784177d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2016-12-03 16:03:59
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解答题-问答题
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(0.4)
【推荐1】已知函数
.
(Ⅰ)若
为
的极值点,求实数
的值;
(Ⅱ)若
在
上为增函数,求实数
的取值范围;
(Ⅲ)若
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有实根,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2010/5/28/1569749493014528/1569749498298368/STEM/57aef0192be94ea390273299d16ee38a.png)
(Ⅰ)若
![](https://img.xkw.com/dksih/QBM/2010/5/28/1569749493014528/1569749498298368/STEM/076187dabb1e40ccabc9b45eeba51739.png)
![](https://img.xkw.com/dksih/QBM/2010/5/28/1569749493014528/1569749498298368/STEM/25de1402d3fc4db1b184132dfc47a9ab.png)
![](https://img.xkw.com/dksih/QBM/2010/5/28/1569749493014528/1569749498298368/STEM/71db5d20d6064563a436f27363526d7b.png)
(Ⅱ)若
![](https://img.xkw.com/dksih/QBM/2010/5/28/1569749493014528/1569749498298368/STEM/25de1402d3fc4db1b184132dfc47a9ab.png)
![](https://img.xkw.com/dksih/QBM/2010/5/28/1569749493014528/1569749498298368/STEM/3eb45e4cc6964815bd8a829a4412c476.png)
![](https://img.xkw.com/dksih/QBM/2010/5/28/1569749493014528/1569749498298368/STEM/71db5d20d6064563a436f27363526d7b.png)
(Ⅲ)若
![](https://img.xkw.com/dksih/QBM/2010/5/28/1569749493014528/1569749498298368/STEM/15f6cd29bca94c4784b9ef103f0b414e.png)
![](https://img.xkw.com/dksih/QBM/2010/5/28/1569749493014528/1569749498298368/STEM/111a939edd4f41778e415c1443e9812a.png)
![](https://img.xkw.com/dksih/QBM/2010/5/28/1569749493014528/1569749498298368/STEM/8abde15277f84312a2d3dacd72c86f47.png)
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较难
(0.4)
【推荐2】已知函数
在
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(1)求
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,若存在
,使得
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a61df5397b6801c792bde959d706b244.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7dcdd87d593df4a5c5e98d47fe1cfa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef001eeef468ca21ac0cbb23fd135657.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c46632d9f93f68133449ba7812b1b66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8a4d4b4c593883a0eba4c7176c31f29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6cf94a58e714ed5c8de2591020c1b42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f97db80e5bf3c061776dc9008d2f2c7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解答题-问答题
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较难
(0.4)
解题方法
【推荐1】已知函数
.
(1)若函数
有一个极小值点和一个极大值点,求
的取值范围;
(2)设
,若存在
,使得当
时,
的值域是
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e1620565b764bf74954f19d2f56aa8.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7e96727a1bc483af6f4861ce6f16c66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3076135c07b92ea9d5c9d369dc89cc25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcb1d596f5c3eeabb5998c3f4c302820.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d45711bb6fcd88181280c3375158168.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0507bc59eb5d0577a5eeae7a2262ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
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较难
(0.4)
解题方法
【推荐2】已知函数
.
(1)若
在
时取得极值,求
的值;
(2)若存在
,使得
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f03a6eb81c9fe3f099939fe14b4cdd37.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8c164755dc2d7cff80fb4c9cffc9be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e2405c4822bceae1cf191edb502d3b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
解题方法
【推荐3】已知函数
.
(1)当
时,求
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(2)若
在
上有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e20a21999ea818acdfb48d3641f70d3b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2749d590bdf00e76a4bbbcab87694659.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b916c6d3fb2fdc67421489f207c93903.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次