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1 . 已知函数
.
(1)若
,解不等式
;
(2)若不等式
的解集为
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/227016583473ea7b7471a097bed0e988.png)
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8944834385332001a50dbf8449caa34a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b356526ed407a6480f91413b769916df.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66d61d5f66d68b4c4a2a25fd7103621.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87c830a03204a5b783ad4c2ba49c4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/227016583473ea7b7471a097bed0e988.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48dc75721e8a356c73c541f10edc3e0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1019d4ad2e3fb4a7abb66e0e9e55b556.png)
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2016-12-04更新
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484次组卷
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6卷引用:安徽省阜阳市2017届高三第二次质量检测数学文科试卷
2 . 已知
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773ca22fc12ade9e60dbc749ba5cfa73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f57bb8dae53533a1734724c973011eaf.png)
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2018-04-06更新
|
194次组卷
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5卷引用:安徽省阜阳市大田中学2018-2019学年高二下学期期中数学(理)试题
安徽省阜阳市大田中学2018-2019学年高二下学期期中数学(理)试题2016-2017学年河北省武邑中学高二下学期期中考试数学(文)试卷山东省寿光现代中学2017-2018学年高二4月月考数学(文)试题(已下线)专题12.2 直接证明与间接证明 (精讲)-2021届高考数学(文)一轮复习学与练苏教版(2019) 必修第一册 过关检测 第3章 第3.1节综合把关
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3 . 若
,则
与
的大小关系为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/175d0c99e866f1db915462a91b356ef3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d6754020d50c045a635bc43205958a.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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4 . 选修4-5:不等式选讲
已知函数
,不等式
的解集为
或
.
(Ⅰ)求实数
的值;
(Ⅱ)若
对任意
恒成立,求实数
的取值范围.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93f17cd92ffda6b16c9400dfac250dfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e714438cf3e1f13a46e1b191d7c51685.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5e3a47b828371daa2dd955dc7d17a3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/495a0f5e77fd176a5a4b0d82ccbb389d.png)
(Ⅰ)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98aae279b66c77191f0f607a0b55a862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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