2014·北京东城·一模
名校
1 . 对任意实数
定义运算“
”:
,设
,
若函数
恰有三个零点,则实数
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f283a930c2b8661ac90bc22d488f9fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be28b086fd0f31be9c403d67fd67c06.png)
若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783e5db3306917ffb6d8e7bfb78747bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2017-10-20更新
|
1180次组卷
|
7卷引用:江西省上饶中学2018-2019学年高一上学期期中考试数学试题2
江西省上饶中学2018-2019学年高一上学期期中考试数学试题2【市级联考】辽宁省沈阳市2018-2019学年高一期末数学试题(已下线)2014届北京市东城区高三下学期综合练习二理科试卷(已下线)2014届北京市东城区高三下学期综合练习二文科试卷2015届安徽省安庆五校联盟高三下学期3月联考数学文科数学试卷山东省菏泽第一中学2018届高三上学期第一次月考数学(理)试题上海市上海中学2019届高三下学期开学摸底数学试题
名校
2 . 已知函数
,若关于
的方程
有
个不等的实数根,则实数
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd41cbe2b3e1075076fec95ea20ec62b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d51eec7ed95fb9f15305821a69db104.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2017-10-17更新
|
2227次组卷
|
7卷引用:【市级联考】河北省定州市2018-2019学年高一上学期期中考试数学试题
名校
3 . 已知函数
,若关于
的不等式
恰有1个整数解,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62f8e359af5329baf82de2b031c35f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dab3076129e78ef171699cdc65c36ef1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2017-10-09更新
|
1053次组卷
|
2卷引用:重庆市重庆十八中两江实验中学2020-2021学年高一上学期11月月考数学试题
解题方法
4 . 设函数
是定义在
上的函数,并且满足下面三个条件:①对正数
,都有
;②当
时,
;③
;
(1)求
和
的值;
(2)如果不等式
成立,求
的取值范围;
(3)如果存在正数
,使不等式
有解,求正数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6521ef75f0a05fe62cdfd2fbbe0430b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f91e401aa4c557085d25e04d92e813bf.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74156327e5659301f391814605688899.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1add45b8dfdfd604c0570cca3a73b1b.png)
(2)如果不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d61c543eceb657941e8aabfc87170102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(3)如果存在正数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1acc151e3fc70a4d2cf4f011fde3e5ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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5 . 若函数
的图象上存在两个点
关于原点对称,则对称点
为
的
“孪生点对”,点对
与
可看作同一个“孪生点对”,若函数
恰好有两个“孪生点对”,则实数
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dee5f21342a14553c65df972f2e62b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
“孪生点对”,点对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dee5f21342a14553c65df972f2e62b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a82a9f4a34b902951fc29c14bc3ed70e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/822187b593e6c8ae8aadb06e61545824.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
6 . 已知
是
上的减函数,那么
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/984f82182025af6d20ed3b606ca11583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ff4a1f5d3ad9d7668fe555e70b774c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2017-03-08更新
|
2890次组卷
|
7卷引用:2015-2016学年广东省普宁市华美实验学校高一上第一次月考数学试卷
7 . 已知函数
.
(1)求函数
的定义域;
(2)若存在
, 对任意
,总存唯一
,使得
成立, 求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fd696a42955c08cbe57883849fdeeec.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cda9499562766a5f320b16ddc30309cb.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980a8c4eb822aeb591ceacfe8a7aaa11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ceacd35b5d01b04e7075f3cf676ee06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a72ba43f703a7806e1e7abafc39e20a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7bd33449a6696ec83b48b4e0bb6d769.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-03-02更新
|
1609次组卷
|
2卷引用:2016-2017学年江西省南昌市第二中学高一上学期期末考试数学试卷
名校
解题方法
8 . 已知函数
,其中常数
,给出下列结论:
①
是
上的奇函数;
②当
时,
对任意
恒成立;
③
的图象关于
和
对称;
④若对
,使得
,则
.
其中正确的结论是 .(请填上你认为所有正确结论的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adfd579156ea56dc4743b809905595b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f184ef9e0d57554e95f369c9d4bbfea1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f34bf6a7c199398b56f4c0c815887e70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b53b86bd516400d6fa7dabb3603f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/853e3c15d116fb61f236ab239c50b114.png)
④若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fea0536108cb4d2742733d8c2240f8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13ca0f27aa97d8d1bec1f6879f460d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56ef1897286981c82d9f787d30221d3f.png)
其中正确的结论是 .(请填上你认为所有正确结论的序号)
您最近一年使用:0次
2016-12-04更新
|
583次组卷
|
2卷引用:宁夏回族自治区银川市兴庆区唐徕中学2023-2024学年高一上学期期中数学试题
解题方法
9 . 已知函数
(
)
(1)求函数
的单调增区间.
(2)若
解不等式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c10cbfba4c8b8b4ff336979841b36fb.png)
(3)若
,且对任意
,方程
在
总存在两不相等的实数根,求
的值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/876510f2376ebe935dc706ce9dc48957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fb1c5e4f983365c4f72909ceba04426.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c10cbfba4c8b8b4ff336979841b36fb.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff3c000c90c288e6727285d4f48fa9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c854a4a289d98a5f581b4429082bf868.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a3f8623fc6adabea1a6a52d49c508ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9186dc3f15560a1e10970193893e9f15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
10 . 已知函数
.若存在
,使得关于
的函数
有三个不同的零点,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edd4c1cd356731fb8defe81a11b5b9ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72920c9c8b310a09de3bcbaea1acb22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/975adfa3e108ccc535edafcb905f169a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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