名校
1 . 设
.
(1)求不等式
的解集
;
(2)若关于
不等式
有解,求参数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf294821597da80ce97d08340968c61.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/188281cc0c7af6e95c32b9bbb94ffc21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df2ae930a1185894cbbe37d1bef25d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2016-12-04更新
|
265次组卷
|
2卷引用:甘肃省会宁县第一中学2018届高三上学期第三次月考数学(理)试题
2 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)若函数
的最小值为5,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e9a53029e199b0b2b373b0e6c90a4bc.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b0148d49a59ee8f80c13fcff56aa6d4.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
解题方法
3 . 设
.
(1)解不等式
;
(2)若不等式
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8cbdd5d4b6ced1201d7ea723582722a.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0a9f7884d2a1a1f304d8d468d8dd47c.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0c37ffd0acfca9eca6998b1439c6a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2016-12-04更新
|
192次组卷
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3卷引用:2016届海南省海口一中高三高考模拟三文科数学试卷
4 . 已知函数
.
(1)求不等式
的解集;
(2)若不等式
对任意
恒成立,求实数
的取
![](https://img.xkw.com/dksih/QBM/2016/6/7/1572706234621952/1572706240962560/STEM/7a3862c2a1ee4b139d86f3a050f91133.png)
(1)求不等式
![](https://img.xkw.com/dksih/QBM/2016/6/7/1572706234621952/1572706240962560/STEM/b3aa8ba403c34407b96782abfcf340d4.png)
(2)若不等式
![](https://img.xkw.com/dksih/QBM/2016/6/7/1572706234621952/1572706240962560/STEM/32f4bf3010694e269f549e39642d83d0.png)
![](https://img.xkw.com/dksih/QBM/2016/6/7/1572706234621952/1572706240962560/STEM/97a85bae387949e7af9eb3dec29b5a3f.png)
![](https://img.xkw.com/dksih/QBM/2016/6/7/1572706234621952/1572706240962560/STEM/401a1157fd664f7bb4d337e0511b6454.png)
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5 . 已知
.
(Ⅰ)求
的取值范围;
(Ⅱ)若对任意实数
,
成立,求实数
的值.
![](https://img.xkw.com/dksih/QBM/2016/6/7/1572698431021056/1572698437410816/STEM/a5d38d03c871457c8967d57ffc1263eb.png)
(Ⅰ)求
![](https://img.xkw.com/dksih/QBM/2016/6/7/1572698431021056/1572698437410816/STEM/016e858dd78a45e0ad06089da651a2d0.png)
(Ⅱ)若对任意实数
![](https://img.xkw.com/dksih/QBM/2016/6/7/1572698431021056/1572698437410816/STEM/0b7c5d6263bf41cabb8c5c72eab23b59.png)
![](https://img.xkw.com/dksih/QBM/2016/6/7/1572698431021056/1572698437410816/STEM/4f43860e2c844d40a7e752bd844402d9.png)
![](https://img.xkw.com/dksih/QBM/2016/6/7/1572698431021056/1572698437410816/STEM/1721b54452c1467595ca3f7c13065dcb.png)
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解题方法
6 . 已知函数
.
(1)求不等式
的解集
;
(2)若关于
的表达式
的解集
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9b3236f4cef4fedf7dd23af6ee00ac5.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6009d51b897a4f898b57e483234f391a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88f769fcd4af8bb6636862af943c9042.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-04更新
|
509次组卷
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2卷引用:2016届云南省曲靖一中高考复习质量监测五理科数学试卷
7 . 已知不等式
的解集不是空集,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c5a198e3bc9db2281f26e612bcaef56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
8 . 选修4-5:不等式选讲
已知函数
.
(1)求不等式
;
(2)若
,不等式
恒成立,求实数
的取值范围.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c742e8d03fee575ff97010ce3c35c0cf.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff15db83ac8fef1242fc5f618b7d532c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d05bfb81fb639a2697789174ac6f21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9293f1d0a915379ce68553134ffb30b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
9 . 已知实数
,函数
的最大值为
.
(I)求
的值;
(II)设函数
,若对于
,均有
,求
的取值范围.
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572663768809472/1572663774625792/STEM/61215781c648400185b87a249bfb2392.png)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572663768809472/1572663774625792/STEM/2f27b1475e2044a0b636e1e808953ac7.png)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572663768809472/1572663774625792/STEM/6c1209737ab5446f90ab2d0867fbd726.png)
(I)求
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572663768809472/1572663774625792/STEM/a0fd60c2d32a4ae8b907e9d5724194af.png)
(II)设函数
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572663768809472/1572663774625792/STEM/8e0a836a4f7746fc840a81b9410cebce.png)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572663768809472/1572663774625792/STEM/bdd5a8ea79384c9c9e5e4bdfbc5f96ed.png)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572663768809472/1572663774625792/STEM/87417e04ed114339aa8fe3d74feccd31.png)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572663768809472/1572663774625792/STEM/6bfdfc91d2d44114b6d03fb00b0a27ee.png)
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10 . 已知函数
.
(1)求不等式
的解集;
(2)若不等式
对任意
恒成立,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572659736477696/1572659742957568/STEM/95ab1800784544df9e92f22e3594c3b8.png)
(1)求不等式
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572659736477696/1572659742957568/STEM/b2e1b52f5fc74edbac801d7d9b248f42.png)
(2)若不等式
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572659736477696/1572659742957568/STEM/c22b08ed1e9c4e318d16fd0feb73e3fe.png)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572659736477696/1572659742957568/STEM/99b6b529c79a42729bd31dfbc149446d.png)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572659736477696/1572659742957568/STEM/1c404fa772af4700833e93cb02fe61e2.png)
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