名校
解题方法
1 . 已知函数
.
(1)解不等式
;
(2)若不等式
有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47b17f62a3df435781295ed4ccaae9b8.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaabd5374abfe989c9b8429118e61bf5.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2afd673820033b1116d7517e04e9091.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-06-13更新
|
377次组卷
|
2卷引用:内蒙古巴彦淖尔市第一中学2018届高三12月月考数学(理)试题
2 . 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)
您最近一年使用:0次
名校
解题方法
3 . 已知定义在R上的函数
,且
恒成立.
(1)求实数m的值;
(2)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3686c750e0a32128a0b60e00be855b38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/990d3feee85e869ea9ab561ff63d46a2.png)
(1)求实数m的值;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b3945f3d4d3044265d597fe1bcf0134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b9d61d98c3d75e65b45f98b9f41da38.png)
您最近一年使用:0次
2017-05-21更新
|
1299次组卷
|
9卷引用:内蒙古赤峰二中2018届高三上学期第二次月考数学(文)试题
名校
4 . 已知函数
.
(1)求不等式
的解集
;
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95a2e2fdabe14383edbd86cead6e2481.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66d61d5f66d68b4c4a2a25fd7103621.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f9849615359e0d43a363c88c537e6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c589083d24ab50d98a19fba02d463a6.png)
您最近一年使用:0次
2017-05-12更新
|
413次组卷
|
6卷引用:内蒙古巴彦淖尔市第一中学2018届高三12月月考数学(理)试题
5 . 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)
您最近一年使用:0次
6 . 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)
您最近一年使用:0次
解题方法
7 . 已知函数
为不等式
的解集.
(1)求
;
(2)当
时,试比较
与
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50b0e66045066de68d6bdd149fe898fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bbf2c84f86e4046e44065d540beff59.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc020b0997a2f37b214718112b79d8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd14f1e228b7eb4e615dd9c7e0bef60a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39fd6e1b162c6f51703d0f36bef48897.png)
您最近一年使用:0次
2017-03-22更新
|
267次组卷
|
2卷引用:2017届内蒙古包头市高三下学期第一次模拟考试数学(理)试卷
8 . 选修4-5:不等式选讲
已知函数
.
(1)若
,解不等式
;
(2)若
,求实数
的取值范围.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07ae1694e7a56ef50d1bb584fe5e9847.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9af6b8933cb0bcc983a15c903b5892e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ad4c61e6963263410575b46254f4a0.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980a1b5fb35bd57a6c9370b499533108.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
9 . 选修4-5:不等式选讲
已知函数
.
(Ⅰ)当
时,求不等式
的解集;
(Ⅱ)对于任意实数
,不等式
恒成立,求
的取值范围.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0335aa95ca27209dad26d972d6a9b1.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc304a55feec5d8312d3082f1bb91a23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/affac963232209484c07999c02afd1b4.png)
(Ⅱ)对于任意实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ca6444f6005c97f2186b6c01d3187b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85377ae6b96180d0e79ad32f10985b48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2017-02-17更新
|
480次组卷
|
6卷引用:内蒙古赤峰二中2016-2017学年高二下学期第二次月考数学(文)试题
名校
解题方法
10 . 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)
您最近一年使用:0次