1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f168350df63ffad561fe335f8d4b805.png)
常数
)满足
.
(1)求出
的值,并就常数
的不同取值讨论函数
奇偶性;
(2)若
在区间
上单调递减,求
的最小值;
(3)在(2)的条件下,当
取最小值时,证明:
恰有一个零点
且存在递增的正整数数列
,使得
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f168350df63ffad561fe335f8d4b805.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/057db09504e1a3e62cd7fc678a7c31ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de99d710db8879ae5e252dd7a80dbba.png)
(1)求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b4fc6f2418a01a22e093134b432574.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(3)在(2)的条件下,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ebbcccecea9155858e048ba3828602.png)
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2016-12-03更新
|
1128次组卷
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4卷引用:2014届上海市虹口区高三5月模拟考试理科数学试卷
(已下线)2014届上海市虹口区高三5月模拟考试理科数学试卷上海市建平中学2015届高三下学期4月月考数学试题上海市普陀区长征中学2018-2019学年高三上学期期中数学试题上海市闵行区七宝中学2016-2017学年高三上学期期中数学试题
12-13高一上·吉林长春·期末
2 . 已知函数
且
的图象关于原点对称.
(1)求
的值;
(2)判断函数
在区间
,上的单调性并加以证明;
(3)当
时,
的值域是
,求
与
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33b8ae3718114da8ea30c527938a9958.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37fa1476cf3552b9ae91ef039b1c6c80.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a7a4a037a4dfe973f1eb683d93d799.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f8684cbc2d1d928aeec1221b240ad4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a7a4a037a4dfe973f1eb683d93d799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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3 . 已知集合
,其中
,由
中的元素构成两个相应的集合:
,
.
其中
是有序数对,集合
和
中的元素个数分别为
和
.
若对于任意的
,总有
,则称集合
具有性质
.
(Ⅰ)检验集合
与
是否具有性质
并对其中具有性质
的集合,写出相应的集合
和
.
(Ⅱ)对任何具有性质
的集合
,证明
.
(Ⅲ)判断
和
的大小关系,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8213c48030bc2cfa88da0f2a28aca2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d807832357bea22a266e63cbd7e678a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/976ed3659749e70adb41abe4030b6ef2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/604a1abd24826ba48fe69d714b1b16d0.png)
其中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
若对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc020b0997a2f37b214718112b79d8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a2cacc52ffe015e828a4a5f2fe5ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(Ⅰ)检验集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e565001c699e5e221ed616dd7be2bb83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0110544a65399ad66980adc3667b8b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(Ⅱ)对任何具有性质
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bca7597aeef0ed7313f6f78b9658ea5e.png)
(Ⅲ)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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2016-11-30更新
|
3440次组卷
|
11卷引用:上海市大同中学2018-2019学年高一上学期10月学情调研数学试题
上海市大同中学2018-2019学年高一上学期10月学情调研数学试题上海市复兴高级中学2021-2022学年高一上学期10月月考数学试题2007年普通高等学校招生全国统一考试理科数学卷(北京)北京东城27中学2018届高三上学期期中考试数学试题北师大附中2017-2018学年高一下学期期末数学试题1北师大附中2017-2018学年高一下学期期末数学试题2北京市第二中学2021届高三高考模拟数学试题北京市第十三中学2022届高三上学期开学考数学试题北京市朝阳区北京中学2022-2023学年高一上学期期中数学试题2007 年普通高等学校招生考试数学(理)试题(北京卷)北京名校2023届高三二轮复习 专题三 集合与数列 第3讲 集合与数列创新题
名校
4 . 对定义在[0,1]上的函数f(x),如果同时满足以下三个条件:
①对任意x∈[0,1],总有f(x)≥0;
②f(1)=1;
③若x1≥0,x2≥0,x1+x2≤1,有f(x1+x2)≥f(x1)+f(x2)成立.
则称函数f(x)为理想函数.
(1)判断g(x)=2x﹣1(x∈[0,1])是否为理想函数,并说明理由;
(2)若f(x)为理想函数,求f(x)的最小值和最大值;
(3)若f(x)为理想函数,假设存在x0∈[0,1]满足f[f(x0)]=x0,求证:f(x0)=x0.
①对任意x∈[0,1],总有f(x)≥0;
②f(1)=1;
③若x1≥0,x2≥0,x1+x2≤1,有f(x1+x2)≥f(x1)+f(x2)成立.
则称函数f(x)为理想函数.
(1)判断g(x)=2x﹣1(x∈[0,1])是否为理想函数,并说明理由;
(2)若f(x)为理想函数,求f(x)的最小值和最大值;
(3)若f(x)为理想函数,假设存在x0∈[0,1]满足f[f(x0)]=x0,求证:f(x0)=x0.
您最近一年使用:0次
2016-12-04更新
|
614次组卷
|
3卷引用:2016届上海市七校高三上12月联考理科数学试卷
5 . 已知函数
的图象过点
,且点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b52599af9eefa3ba41a68d6e887dd38.png)
在函数
的图象上.
(1)求数列
的通项公式;
(2)令
,若数列
的前
项和为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95ff35f3b50966a5e3cbb0b5977af7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efd3fde59c5b7f5f7597cb89b9680352.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b52599af9eefa3ba41a68d6e887dd38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a31419e0523278fb897fc050d234e9f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95ff35f3b50966a5e3cbb0b5977af7e3.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4c3cbaac3c359c16d8e93fe104ba8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2cae890b39350dd47936d6edbf919e9.png)
您最近一年使用:0次
2016-12-03更新
|
282次组卷
|
4卷引用:2015届吉林省长春十一中高三上学期第二次测试理科数学试卷
11-12高三上·上海·期末
名校
6 . 已知函数
(常数
.
(1)若
,且
,求
的值;
(2)若
,求证函数
在
上是增函数;
(3)若存在
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/479ae47f656999b127044da3150cbf34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3701a33910739036a505823bc6d75be8.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee708f92c52fba2937144d34a967dfee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f148f3e5650bb90bf0d7b28f0c83b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeb49dbba01c4ff5f686ffc8828351b2.png)
(3)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1376168658dbe7f5b7f4d75fb1db545a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d694b058a618cef8296d2fcacd7870.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
7 . 已知函数
定义域为
,若对于任意的
,都有
,且
时,有
.
(1)证明函数
是奇函数;
(2)讨论函数
在区间
上的单调性.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291d664e9ea8088c35bb6b0550f18675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e039085a8534d73fdd142c51aaf2faa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd384d86840b7b158af41f56fe29c7d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7fde71807463dbdfd8fce1655a5a9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bca88b72ac8dc9c7c137af932de90bc7.png)
(1)证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291d664e9ea8088c35bb6b0550f18675.png)
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2016-12-05更新
|
981次组卷
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2卷引用:2016-2017学年山西大同一中高一10月月考数学试卷
8 . 已知函数
,![](https://img.xkw.com/dksih/QBM/2016/10/20/1573084344827904/1573084350914560/STEM/d89ca161a445413c9db4a9715a63641f.png)
(1)用定义法证明
在
上是增函数;
(2)求出所有满足不等式
的实数
构成的集合;
(3)对任意的实数
,都存在一个实数
,使得
,求实数
的取值围.
![](https://img.xkw.com/dksih/QBM/2016/10/20/1573084344827904/1573084350914560/STEM/999cfaa83f9c45bbb4b356b1fe2ef26b.png)
![](https://img.xkw.com/dksih/QBM/2016/10/20/1573084344827904/1573084350914560/STEM/d89ca161a445413c9db4a9715a63641f.png)
(1)用定义法证明
![](https://img.xkw.com/dksih/QBM/2016/10/20/1573084344827904/1573084350914560/STEM/b518776a5c614ce8acfb0142e11e7173.png)
![](https://img.xkw.com/dksih/QBM/2016/10/20/1573084344827904/1573084350914560/STEM/89c6efd13b344ef3989687e35a9f869a.png)
(2)求出所有满足不等式
![](https://img.xkw.com/dksih/QBM/2016/10/20/1573084344827904/1573084350914560/STEM/188b0aa7cb3143ef93704ce58c4df648.png)
![](https://img.xkw.com/dksih/QBM/2016/10/20/1573084344827904/1573084350914560/STEM/6063c96f8bec46b69bf17ef45baf3d68.png)
(3)对任意的实数
![](https://img.xkw.com/dksih/QBM/2016/10/20/1573084344827904/1573084350914560/STEM/47d5418ca895474cbe6e5055f55aec89.png)
![](https://img.xkw.com/dksih/QBM/2016/10/20/1573084344827904/1573084350914560/STEM/fd0b7b5e6a104c39a085c0580279f355.png)
![](https://img.xkw.com/dksih/QBM/2016/10/20/1573084344827904/1573084350914560/STEM/228bccdfb29641588ee30b55f9ca7f12.png)
![](https://img.xkw.com/dksih/QBM/2016/10/20/1573084344827904/1573084350914560/STEM/485bcc07cf2649e4bec1ef3499c3de2f.png)
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名校
9 . 如图所示,公园内有一块边长为
的等边
形状的三角地,现修成草坪,图中
把草坪分成面积相等的两部分,
在
上,
在
上.
![](https://img.xkw.com/dksih/QBM/2015/10/10/1572256703840256/1572256710049792/STEM/83b013e487864fcfa2ca1392c514964d.png)
(Ⅰ)设![](https://staticzujuan.xkw.com/quesimg/Upload/formula/832a361da851b54c6437a96488a1b987.png)
,试用
表示
的函数关系式;
(Ⅱ)如果
是灌溉水管,为节约成本希望它最短,
的位置应该在哪里?如果
是参观线路,则希望它最长,
的位置又在哪里?请给予证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/878e89b6eca35e34c863e832a2c661db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/2015/10/10/1572256703840256/1572256710049792/STEM/83b013e487864fcfa2ca1392c514964d.png)
(Ⅰ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/832a361da851b54c6437a96488a1b987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5d70e5d13db498f1c8a2e017c56e58b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(Ⅱ)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
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2016-12-03更新
|
715次组卷
|
3卷引用:2014-2015学年四川省新津中学高一6月月考数学试卷
11-12高三·上海·阶段练习
10 . 设函数
.
(1)求
的反函数
;
(2)判断
的单调性,不必证明;
(3)令
,当![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02d8f265325088c1cfd15033e81517aa.png)
,
时,
在
上的值域是
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e191f58cc012aecb5f59977a2c5df029.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d6b59f4796a45963dea76b89c72bea.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d6b59f4796a45963dea76b89c72bea.png)
(3)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d19f9456fb036d61e6dcb17fdf516e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02d8f265325088c1cfd15033e81517aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a7a4a037a4dfe973f1eb683d93d799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/881f58ceb353ccd4d690e442a9c47877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d6b59f4796a45963dea76b89c72bea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc402f843459c40b8a24113590e27e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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