1 . 设数列
的前n项和为
,已知
,
,
,若
,则正整数k的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ea8d0e50065114b05ef2dc1ea1129cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c840b24a1626f247eefe7371c8abb50e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2889dd3096379db5dfdd51305bdbb743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2bba93ea41b19a10e9c791029f254c4.png)
A.2016 | B.2017 | C.2018 | D.2019 |
您最近一年使用:0次
名校
解题方法
2 . 设函数
向左平移
个单位长度得到函数
,已知
在
上有且只有5个零点,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0353de646a03c770d51fc68de92bde06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a67a4f775166f4cf7205494b2491bfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aebb9595cfebe608e2b3ec06c10421dd.png)
A.![]() ![]() |
B.在![]() ![]() ![]() |
C.![]() ![]() |
D.![]() ![]() |
您最近一年使用:0次
2022-07-06更新
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3120次组卷
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5卷引用:辽宁省沈阳市五校协作体2020-2021学年高一下学期期末联考数学试题
辽宁省沈阳市五校协作体2020-2021学年高一下学期期末联考数学试题江苏省连云港市灌南高级中学2022-2023学年高一提优班上学期期末数学试题山东省济宁市泗水县2022-2023学年高一下学期期中数学试题(已下线)专题3-1 三角函数求ω归类(讲+练)-3(已下线)“8+4+4”小题强化训练(20)
名校
3 . 设函数
,若关于
的函数
恰好有六个零点,则实数
的取值范围是_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca32fbc2384414967ac50779876f9f7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57710a106ac9afe871630671facd1980.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2022-05-27更新
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2667次组卷
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8卷引用:重庆市江津中学校2020-2021学年高一下学期入学考试数学试题
重庆市江津中学校2020-2021学年高一下学期入学考试数学试题江苏省南京师范大学附属中学江宁分校2021-2022学年高一下学期期中数学试题(已下线)4.5.1 函数零点与方程的解(分层作业)-【上好课】黑龙江省牡丹江市第一高级中学2023-2024学年高一上学期12月月考数学试题(已下线)高一数学上学期(12月)月考模拟卷(到三角函数定义)-【巅峰课堂】热点题型归纳与培优练江西省新余市2023-2024学年高一上学期期末质量检测数学试卷黑龙江省哈尔滨市德强学校2022-2023学年高二上学期开学摸底考试数学试题山东省青岛市莱西市第一中学2022-2023学年高三上学期12月月考数学试题
4 . 设正整数
,其中
,记
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/313dfba68777de2c01821497b650abe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a406d53fd6ffd9ee6cd914f5e2b0a9bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8c5569209bfd915710696e703a8e1db.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
5 . 已知
,函数
的图象与直线
相交于
,
两点,点
在
轴上.
(1)求
的值,并写出点
的坐标;
(2)当
,求
的最大值和最小值;
(3)若命题“
,都有
”是真命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/048c55392adf8fc7bebcca98e7bb5246.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107babba45f110012183dc4dc54490f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b19ec2a677e3362a65dadaa5566cd27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(3)若命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde295fa7fa8e12e6f06e2ed510f6a9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f99c368e6cb0afd2f28d01eb209ba4c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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名校
6 . 对正整数
,记
,
.
(1)用列举法表示集合
;
(2)求集合
中元素的个数;
(3)若
的子集
中任意两个元素之和不是整数的平方,则称
为“稀疏集”.证明:存在
使得
能分成两个不相交的稀疏集的并集,且
的最大值为14.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/477ac10cc039be2d2a06fad831fa523f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5d7155d7bd00e29d2e9324a8845735b.png)
(1)用列举法表示集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797e67927616b141ed7c6b83f8b6f4fb.png)
(2)求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb82d62ae6889a177c70d3adf8a91056.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
2021-10-17更新
|
958次组卷
|
6卷引用:上海市大同中学2021-2022学年高一上学期10月月考数学试题
上海市大同中学2021-2022学年高一上学期10月月考数学试题(已下线)1.1 集合的运算(第4课时)上海市青浦高级中学2022-2023学年高一上学期期中数学试题(已下线)第1章 集合与逻辑(基础、典型、新文化、压轴)分类专项训练-2022-2023学年高一数学考试满分全攻略(沪教版2020必修第一册)湖南省岳阳市2022-2023学年高一下学期期中数学试题(已下线)难关必刷01集合的综合问题(3种题型30题专项训练)-【满分全攻略】(沪教版2020必修第一册)
名校
解题方法
7 . 用
表示非空集合
中元素的个数,定义
,若
,
,
,则实数
的所有可能取值构成集合
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447a9718a502491b47072ce013c26a2f.png)
______ .(请用列举法表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc8279d9dd0b7750953cb9e2098b3b90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f99ad4bc7f13a4032ac8fccc7789550a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d78a96152c480ec21462f47f3728ed0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/becdce2cca96c1e9b9596dc3cdc82959.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8823395fd2aa2284019ec6cc071e1b40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447a9718a502491b47072ce013c26a2f.png)
您最近一年使用:0次
2021-10-17更新
|
1623次组卷
|
8卷引用:上海市大同中学2021-2022学年高一上学期10月月考数学试题
上海市大同中学2021-2022学年高一上学期10月月考数学试题上海市张堰中学2021-2022学年高一上学期期中数学试题(已下线)上海市华东师范大学第二附属中学2022-2023学年高一上学期开学考试数学试题(已下线)专题01集合与逻辑(15个考点)(1)(已下线)第01讲 集合的含义与表示(4大考点12种解题方法)(3)(已下线)重难点01集合与常用逻辑用语(9种解题模型与方法)(1)上海市位育中学2023-2024学年高一上学期10月月考数学试题沪教版(2020) 一轮复习 堂堂清 第一单元 1.4 常用逻辑概念
解题方法
8 . 如图所示,
,
,…,
,…是曲线
(
)上的点,
,
,…,
,…是x轴正半轴上的点,且
,
,…,
,…均为等腰直角三角形(
为坐标原点).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/1ffc8f62-96ab-455a-9972-4df3009665de.png?resizew=238)
(1)求数列
的通项公式;
(2)设
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b225d772013d021cf1bfe7b9421fa5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6b7e35faab6d74fa0c36599c39d1698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c051c2459ca7e2edd8ece9e565ec4b09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af2d78b119739a1242e1ae274a9198a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc65d6eb9b63f96d80b54ec9893aee8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc2326cb86431ec57dededd7c9ed60a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba15787e7f3851a3f24936000212296e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b25286f6029da66ce5270aacd05184f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f097e3c2591eeae50ba0d92b984d625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/add8209d60d4bb35d09a0338d3e5e165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6696f67db73ba4a3eca968af0323f27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7356ec98b600ece41f3a6b4bc26a7d59.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/1ffc8f62-96ab-455a-9972-4df3009665de.png?resizew=238)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a388dd60ad00d4874a9af61a1d09f054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
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2021-09-25更新
|
555次组卷
|
2卷引用:江苏省南通、盐城 、淮安、 宿迁等地部分学校2021-2022学年高一上学期第一次大联考数学试题
名校
解题方法
9 . 如图,设
中角
所对的边分别为
为
边上的中线,已知
且
.
(2)求
的面积;
(3)设点
分别为边
上的动点,线段
交
于G,且
的面积为
面积的一半,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97598771e2f206cd08b11e552121490b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4580cc037c0c760c728cdbb74a8154c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55ca16acc058af4ae6a87ddd6c55234.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(3)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b085af88f8ef3a47c4d72e0d1b7211c.png)
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2021-09-07更新
|
3236次组卷
|
7卷引用:重庆外国语学校2020-2021学年高一下学期期中数学试题
名校
解题方法
10 . 如图,
是线段
的三等分点,
,下列以O为起点的向量中,终点落在四边形
(含边界)内的向量是( )
![](https://img.xkw.com/dksih/QBM/2021/5/9/2717388672458752/2802889470681088/STEM/171a9ef5093e49fe83ecd4be89134588.png?resizew=114)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67346d0f913f378b4305ca5554c9d259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ac1bc988297f59a42d8165fd677da0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
![](https://img.xkw.com/dksih/QBM/2021/5/9/2717388672458752/2802889470681088/STEM/171a9ef5093e49fe83ecd4be89134588.png?resizew=114)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-09-07更新
|
1648次组卷
|
4卷引用:重庆外国语学校2020-2021学年高一下学期期中数学试题
重庆外国语学校2020-2021学年高一下学期期中数学试题(已下线)第6章 平面向量及其应用(压轴30题专练)-2021-2022学年高一数学考试满分全攻略(人教A版2019必修第二册)(已下线)高一数学下学期期中精选50题(压轴版)-2021-2022学年高一数学考试满分全攻略(人教A版2019必修第二册)(已下线)高一下期中真题精选(压轴60题专练)-【满分全攻略】2022-2023学年高一数学下学期核心考点+重难点讲练与测试(人教A版2019必修第二册)