名校
1 . 定义:如果函数
在
上存在
,
,满足
,则称数
,
为
的上的“对望数”,函数
为
上的“对望函数”,给出下列四个命题:
①二次函数
在任意区间
上都不可能是“对望函数”;
②
为
上的“对望函数”,则
在
上不单调;
③函数
是
上的“对望函数”;
④函数
是
上的“对望函数”;
其中正确命题的序号为______ (填上所有正确命题的序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2151e6ca1843b9457b8a47349467160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36adc4ecc55f14b9069c6657c0df6ca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
①二次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10eb13ecc3eb6d6c155882e0b70b083d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd56f8d9a837e2d69eb075563083ca35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87c830a03204a5b783ad4c2ba49c4e.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87d71f56ef6906bc37ca312051d97d4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c627fffd029aace8c83ab69c7951a0e7.png)
其中正确命题的序号为
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2022-01-02更新
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7卷引用:上海市嘉定第二中学2024届高三上学期期中数学试题
上海市嘉定第二中学2024届高三上学期期中数学试题湖南省湘潭一中、双峰一中,邵东一中2019-2020学年高二下学期联考数学试题北京市首师大附中2021届高三4月份高考数学模拟试题北京市第五中学2022届高三12月第二次阶段考试数学试题(已下线)专题3.2 模拟卷(2)-2022年高考数学大数据精选模拟卷(新高考地区专用)(已下线)江苏省南通市如皋市2023-2024学年高三上学期9月诊断测试数学试题辽宁省朝阳市育英高级中学2022届高三上学期期末数学试题
名校
解题方法
2 . 已知函数
给出下列结论:
①
在
上有最小值,无最大值;
②设
则
为偶函数;
③
在
上有两个零点.
其中正确结论的序号为________ .(写出所有正确结论的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa7e727929a1fe64d3da9f9dc4b64b9e.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c2e00e0ba21405c6c8221f2248a08cd.png)
②设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9a019d93dff2f07e177247365550659.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7754d3d2a36a239b8b98db7838d9e0ee.png)
其中正确结论的序号为
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2020-09-09更新
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570次组卷
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11卷引用:模块3 专题3 第2套 小题入门夯实练【高二人教B】
(已下线)模块3 专题3 第2套 小题入门夯实练【高二人教B】2020届北京市平谷区高三第二次模拟考试数学试题北京市平谷区2020届高三第二学期阶段性测试(二模)数学试题考点05 导数的应用-2020年【衔接教材·暑假作业】新高三一轮复习数学(理)(人教版)考点05 导数的应用-2020年【衔接教材·暑假作业】新高三一轮复习数学(文)(人教版)(已下线)第二单元 函数概念与基本初等函数(B卷 滚动提升检测)-2021年高考数学(文)一轮复习单元滚动双测卷(已下线)专题13 函数及其性质-2020年高考数学母题题源解密(北京专版)(已下线)考点45 导数与函数的极值、最值-备战2021年新高考数学一轮复习考点一遍过北京市首都师范大学第二附属中学2021届高三下学期开学考试数学试题黑龙江省七台河市勃利县高级中学2020-2021学年高二4月月考数学(文)试题(已下线)北京市海淀区2022届高三一模数学试题变式题11-15
名校
3 . 对于函数
.现有下列结论:①任取
,
,都有
;②函数
有3个零点;③函数
在
上单调递增;④若关于
的方程
有且只有两个不同的实根
,
,则
.其中正确结论的序号为______ .(写出所有正确命题的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b488ea4070e2c7f27a5a3fcb7c7c8138.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c50d84d051a6e770d1eeefcdcd58b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1a8c69aaecfbe4d8bd7cf01a3b79c50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2419b1e277ee683ac59e59289109bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bd2993f6583edb4693a760f3f276a66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b647bef81d6e219c508eca1517d9342.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecc2660c57e0cb6f907f49ae35677113.png)
您最近一年使用:0次
2020-06-16更新
|
1467次组卷
|
6卷引用:黑龙江省哈尔滨三中2017-2018学年高三上学期期中考试文科数学试题
名校
4 . 若存在实常数k和b,使得函数
对其公共定义域上的任意实数x都满足:
恒成立,则称此直线
的“隔离直线”,已知函数
(e为自然对数的底数),有下列命题:
①
内单调递增;
②
之间存在“隔离直线”,且b的最小值为
;
③
之间存在“隔离直线”,且k的取值范围是
;
④
之间存在唯一的“隔离直线”
.
其中真命题的序号为__________ .(请填写正确命题的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef655f5ecd8e5f7798c6e6747ba999b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c34f5d4207fbf261bdbcf0926155230.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c17624c234559f04f5d94b7077f169a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55adeff09c4d3d878785239f0bf2e27a.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffc247e5237219a6169648a3d20483c9.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b814095580525ddc8176650af6b73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3edbd40e04e2a943051fa83d6e511add.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b814095580525ddc8176650af6b73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c768cd9231a15caad0839f05d0f9207c.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8945c5bbc31c6617924d2c8aa29a091.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17432e76b39908abe390d80f3c97f476.png)
其中真命题的序号为
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2018-09-02更新
|
1122次组卷
|
5卷引用:安徽省马鞍山市第二中学2018-2019学年高三上学期期中理科数学试题
名校
5 . 下列结论:
(1)若
,则“
”成立的一个必要不充分条件是“
,且
”;
(2)存在
,且存在
使得
;
(3)若函数
的导函数是奇函数,则实数
;
(4)平面上的动点
到定点
的距离比
到
轴的距离大
的点
的轨迹方程为
;
(5)已知平面
满足
,则
;
(6)若
,则事件
与
是对立事件.
其中正确结论的序号为__________ .(填写所有正确的结论序号)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a9344f4fca7b9779ca7720e5277ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bec124eb33e5ab4601b4b70f70913b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
(2)存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/787ef778b8c90778644b6f34d2f851b0.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcfe5f8a174b9b70fe067e171da7ea2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
(4)平面上的动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63309dbc3612815f6dbdee23d9a10adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
(5)已知平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb3e3f7a929526d602d0a4010ba479a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cac3ca03e7640dceb04fbf33b8268b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35f747152f006301e03b643afb80195c.png)
(6)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f94cb714391a7e13d8e53bebd4042fb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
其中正确结论的序号为
您最近一年使用:0次
名校
6 . 在下列命题中
①函数f(x)=![](https://img.xkw.com/dksih/QBM/2017/9/12/1779404213936128/1790884842864640/STEM/b180ff2b605049439224b1b28b896b2a.png?resizew=13)
在定义域内为单调递减函数;
②已知定义在R上周期为4的函数f(x)满足f(2﹣x)=f(2+x),则f(x)一定为偶函数;
③若f(x)为奇函数,则
f(x)dx=
2f(x)dx(a>0);
④已知函数f(x)=ax3+bx2+cx+d(a≠0),则a+b+c=0是f(x)有极值的充分不必要条件;
⑤已知函数f(x)=x﹣sinx,若a+b>0,则f(a)+f(b)>0.
其中正确命题的序号为________ (写出所有正确命题的序号).
①函数f(x)=
![](https://img.xkw.com/dksih/QBM/2017/9/12/1779404213936128/1790884842864640/STEM/b180ff2b605049439224b1b28b896b2a.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2017/9/12/1779404213936128/1790884842864640/STEM/76e41186ce9a4e57a25bd90290345d42.png?resizew=13)
②已知定义在R上周期为4的函数f(x)满足f(2﹣x)=f(2+x),则f(x)一定为偶函数;
③若f(x)为奇函数,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf1afb94a2b6192ff8384ca799f395.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c65e406ef0b179ee713a87ced7d5606d.png)
④已知函数f(x)=ax3+bx2+cx+d(a≠0),则a+b+c=0是f(x)有极值的充分不必要条件;
⑤已知函数f(x)=x﹣sinx,若a+b>0,则f(a)+f(b)>0.
其中正确命题的序号为
您最近一年使用:0次
2017-10-08更新
|
374次组卷
|
4卷引用:安徽省黄山市屯溪第一中学2016-2017学年高二下学期期中考试数学(理)试题1
7 . 给出以下四个命题:
①已知命题
;命题
.则命题
和
都是真命题;
②过点
且在
轴和
轴上的截距相等的直线方程是
;
③函数
在定义域内有且只有一个零点;
④先将函数
的图象向右平移
个单位,再将新函数的周期扩大为原来的两倍,则所得图象的函数解析式为
.
其中正确命题的序号为_______________ .(把你认为正确的命题序号都填上)
①已知命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134bea5721c0cf6e8e714f1ffcfb03e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d88d01fd93d799628ccc01cdcee0162d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
②过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27cf818dd484cc4cebd40a5f28eb8e9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0985b973395bcd371cd1e26d3fcd1c36.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4be5a03c3cf1c9373082a3fe64480443.png)
④先将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780209d8e2b9ce902d8b483cd674f9c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
其中正确命题的序号为
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2016-12-03更新
|
1189次组卷
|
2卷引用:2014-2015学年江苏教育学院附属高中高三上学期期中理科数学试卷
8 . 已知函数
,有下列四个命题:其中正确命题的序号为_____ .(填上所有正确命题的序号)①若
,要得到函数
的图象,只需将函数
的图象向右平移
个单位;②若
,则函数
的一个对称中心为
;③若
的一条对称轴方程为
,则
;④若方程
的正实数根从小到大依次构成一个等差数列,则这个等差数列的公差为
.
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/32f58c7f1fa74f2ca2271e782f87f7ee.png?resizew=220)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/b8e81a0b121e4dfb8c1e7675b9b54f1d.png?resizew=93)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/eef3657ef1714f52a100d893c3ccfc78.png?resizew=61)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/a4e4853cbeec486f89e3ce5a9eaca63c.png?resizew=77)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/1957592ddd084e389a3693003ac415fb.png?resizew=17)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/fbb46f9fc2634e0f8492014b9dad2370.png?resizew=81)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/eef3657ef1714f52a100d893c3ccfc78.png?resizew=61)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/b20535b79ff94fe9b2c279563f4f0105.png?resizew=46)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/eef3657ef1714f52a100d893c3ccfc78.png?resizew=61)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/a203d6e592594c92a743495ed3cd8df7.png?resizew=42)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/398232110d724cb3adcbffd032a07453.png?resizew=37)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/9bc706598cd249dc87e83ab189046b0e.png?resizew=143)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/9bd24ca6953245f5a16a96b0f6f10050.png?resizew=15)
您最近一年使用:0次
9 . 已知:① 函数
有且仅有一个零点;② 在
中,若
,则
;③抛物线
的焦点坐标为
;④不等式
恒成立,则上面结论错误的序号为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37aa94fb49142178126bf4d6730af798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca51be437b1a97ca92aa1159ab71102c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19dc38d888741a1b2e95fe0773a48c38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380c8ff22997421404c4f0d0708ab126.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29881e55e3dd8760966a415648a556b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccbe0d2108648e69fcddab17c20d1763.png)
A.① | B.② | C.③ | D.④ |
您最近一年使用:0次
名校
解题方法
10 . 给出下列四个命题:
①若
,则
为等腰三角形;
②函数
的最大值为
;
③在
中,若
,则
的形状是钝角三角形;
④用篱笆围一个面积为
的矩形菜园,要使所用篱笆周长最短,则所用篱笆最短的周长是
.
其中正确的序号为__________ (注:把你认为正确的序号都填上)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b883d9703a1deaf8dbc18097c6b8bb2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89deb3ed56b145b87f4711a49b8ab094.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
③在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/272058608afabdb02a59321e1bffe344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
④用篱笆围一个面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6711f79513b534982a9ada2b625e9fdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45c758c27bec97c234d1d818c40f3d3f.png)
其中正确的序号为
您最近一年使用:0次