名校
1 . 已知函数
.
(1)求不等式
的解集;
(2)设函数
的最大值为M,若不等式
有解,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07ce260865d361ee85d444a749959939.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2608a57caffde627dbf140ca22a2ff8a.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd8576c8dbe9c796ad2e851b2525d94d.png)
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2018-01-19更新
|
355次组卷
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2卷引用:广东省茂名市2018届高三上学期第一次综合测试数学(文)试题
解题方法
2 . 已知函数
,
是常数,且
.
(1)当
时,求不等式
的解集;
(2)若
时,恒有
成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1d32416962fa672e470bb2dfe9d9bed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc9ede2e55724383dd1093fc7fcdb59.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/629507dcfdeb6866da428c4f45e2b21d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2018-01-08更新
|
591次组卷
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5卷引用:【市级联考】广东省江门市普通高中2018届高三调研测试理科数学试题
3 . 选修4-5:不等式选讲
已知函数
.
(1)当
时,求不等式
的解集;
(2)若函数
的值域为
,且
,求
的取值范围
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c278c78592456a8741a342d84edc6ee.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d51b98a98f42f6dd23ccc0b45cf7490.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fc0e913e7fe39efc8b672b8f0b86ee8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb4e55274e942a75b92f2aa1394d678d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2017-12-28更新
|
501次组卷
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2卷引用:广州市2018届高三上学期第一次调研测试理科数学试题
4 . 已知函数
,
.
(1)当
时,求不等式
的解集;
(2)若存在实数
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae40430099c08442eb46892d734bf2e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e946778d0543d152cd6f56c7adbc6e71.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43920f5171ed31db2520ef00e4c5fc24.png)
(2)若存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ff7d35402e08db25a65ad71d45fb88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2017-12-20更新
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2卷引用:广东省化州市2018届高三上学期第二次高考模拟考试数学(理)试题
名校
5 . 设函数
.
(1)求不等式
的解集;
(2)若
,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f906981d59dfd6c3a9df3de053ed0ae1.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adb1dc30d4b297c6d5d0d6d91eab1e3b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a54882841a2a8f9feb298dbbb1014c25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2018-03-10更新
|
452次组卷
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9卷引用:2015-2016学年广东省揭阳市惠来一中等高二上学期期末理科数学试卷
2015-2016学年广东省揭阳市惠来一中等高二上学期期末理科数学试卷2016届湖南长沙市雅礼中学高三月考八数学(理)试卷2017届新疆生产建设兵团二中高三上月考一数学(理)试卷2017届新疆生产建设兵团二中高三上月考一数学(文)试卷甘肃省西北师范大学附属中学2017届高三下学期第四次校内诊断考试数学(理)试题黑龙江省佳木斯市第一中学2017-2018学年高二下学期开学考试数学(文)试题山东省淄博实验中学2018-2019学年高三寒假学习效果检测(开学考试)数学(理科)试题吉林省辽源市东辽县第一高级中学2019-2020学年高二5月考试数学(理)试题安徽省马鞍山市含山中学2019-2020学年高二下学期5月月考数学(理)试题
名校
6 . 已知
,不等式
的解集是
.
(
)求
的值.
(
)若
存在实数解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fac7980a2eef143eb6a431ab5495707.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0a9f7884d2a1a1f304d8d468d8dd47c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30239b2e9f65fcfb291737238d02d4dc.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3fcea7522e2a02c655cf954eb0452cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2017-09-23更新
|
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5卷引用:【校级联考】广东省广州市实验中学、执信中学2018届高三10月联考数学(文)试题
7 . 选修4-5:不等式选讲
已知函数
(
).
(1)证明:
;
(2)若
,求
的取值范围.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eb9026c022e1d70f8d59cf101120f21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df7b5582e1931243dbb90b7591137f23.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/256f3981024e53f373a80aad40e994ae.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d39979cf1e03044bfc63703bb10505.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-09-23更新
|
527次组卷
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8卷引用:广东省茂名市五大联盟学校2018届高三9月份联考试理数试题
8 . 选修4-5:不等式选讲
已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04af3afd7e470577e22c31498e39c080.png)
(1)求关于
的不等式
的解集;
(2)
,
,使得
成立,求实数
的取值范围.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04af3afd7e470577e22c31498e39c080.png)
(1)求关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2608a57caffde627dbf140ca22a2ff8a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/045748e3e58bfc29cf00ea0b80d2d56b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b0e7fc13df79412fea2f118a1391696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bf8197e4f3fd18815045d29c357a863.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
(1)解不等式
;
(2)若存在实数
,对任意实数
的不等式
恒成立,求实数
的取值范围.
已知函数
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1bf0995f32a13d0a9e423f3e88ab271.png)
(2)若存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26babf410a310faafe8fcc280687d55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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名校
10 . 选修4-5:不等式选讲
已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0907947a93832ab4df3bb8e85d357222.png)
.
(I)当
时,求不等式
的解集;
(II)设关于
的不等式
的解集为
,且
,求实数
的取值范围.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0907947a93832ab4df3bb8e85d357222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f79b8690c922e042e422cda331fbdfc.png)
(I)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aed39f5aca78934fb383402433fe549.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d24227741bf427e6bd73490baf3c3d6.png)
(II)设关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e629b11a715a3aa0e1fc956682d231d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/627580c8d2511ba605de6ceb6b516824.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2017-11-16更新
|
460次组卷
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2卷引用:广东省珠海市珠海二中、斗门一中2018届高三上学期期中联考数学(文)试题