1 . 选修4-5:不等式选讲
已知函数
.
(1)当
时,求不等式
的解集;
(2)当
时,
恒成立,求实数
的取值范围.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce489d97cacb0237049f1da8385b450d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d0cd47609b9d1865dfff4979161cf5.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/837627f01212a00824c5ea72ee6c80c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
2 . 设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c229c63ed13758c88225439beaf8abe0.png)
(1)当
时,解不等式:
;
(2)若不等式
的解集为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c229c63ed13758c88225439beaf8abe0.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0b43222191c8122812c5a6e68048d06.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db53e1f7b993bc9b961253c88bf929b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638ae436448a1dfd4037bb31c8fbb605.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2016-12-03更新
|
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4卷引用:2016届内蒙古赤峰二中高三上12月月考文科数学试卷
14-15高三上·云南玉溪·阶段练习
解题方法
3 . 设函数
.
(1)当
时,求函数
的定义域;
(2)若函数
的定义域为
,试求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e2536c2a7b8a108ed9c8957b6e3bbe.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab839d8569171afab5ed55c22013aa72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2016-12-03更新
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9卷引用:内蒙古赤峰二中2014-2015学年高二下学期第二次(6月)月考数学(文)试题
4 . 选修4-5:不等式选讲
已知函数
的最小值为
.
(1)求
的值;
(2)若
,
,求
的最大值.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/131535986108c4a13778cedc9f5896f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0e9d1ad9561d693958756ee8398218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f470186e26a96aabfd820e205e6d5e9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef447b76cc42ffd5203c58195a770e56.png)
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名校
解题方法
5 . 已知函数
,
(1)解不等式
;
(2)设
,对任意
都有
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ae4c965c0a43257b13fbbf7df8c4b5d.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e674bf3f00e008ef510c783fcfa18219.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/597ca5bf7e8d0959c1ca65962b6a4200.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfdc5378149a052e9d006de6fbc5bc5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a141d9834d3aeec04e8b2fe9195c62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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6 . 已知
,函数
的最小值为1.
(1)求
的值;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/846fed98a219097783e0ca2f41483cac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/068b98987beb9d7537cf3124c29229a0.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae24688d4c45aad43e9af0b7bbfda6b.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d689b0da0bd4803b3e8a6c69542ae466.png)
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2016-12-04更新
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2卷引用:2016届内蒙古赤峰市高三4月统一能力测试数学(理)试卷
7 . 选修4—5:不等式选讲
已知函数
.
(Ⅰ)若
恒成立,求
的取值范围;
(Ⅱ)解不等式
.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f00756c357474c80283e519fdd9791b3.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dab19d34e252c082921ac91b2efd8cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9542add8be5c4f23b50acc46e2909766.png)
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2016-12-03更新
|
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2卷引用:2015届内蒙古呼伦贝尔市高考模拟统一考试二理科数学试卷
8 . 选修4-5:不等式选讲
已知函数
.
(Ⅰ)记函数
,在下列坐标系中作出函数
的图象,并根据图象求出函数
的最小值;
![](https://img.xkw.com/dksih/QBM/2017/4/12/1664093626662912/1664156307759104/STEM/502dde4d667f471881b9e7650776c93e.png?resizew=182)
(Ⅱ)记不等式
的解集为
,若
,
,且
,求实数
的取值范围.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c2d527a5b6e7146a6f2a08ebd7f423f.png)
(Ⅰ)记函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0daa197b4f3754576b60155da2ba0cf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e03ad0c315806342d6cd732a0b91a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e03ad0c315806342d6cd732a0b91a3.png)
![](https://img.xkw.com/dksih/QBM/2017/4/12/1664093626662912/1664156307759104/STEM/502dde4d667f471881b9e7650776c93e.png?resizew=182)
(Ⅱ)记不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28038930d75c12817dd5b46c76eaa732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03bc707db90b5c49fc234e00eab1c7f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f85c22135f8e5f058bb0139883ee23a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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