名校
1 . 已知集合
,集合
,那么
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6743da9b76d62b65434c357ad3339e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e073f723c73e990675a7973c9a0e226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-04-06更新
|
300次组卷
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5卷引用:2020届北京市平谷区高三3月质量监控(一模)数学试题
2020届北京市平谷区高三3月质量监控(一模)数学试题北京市陈经纶中学 2019-2020学年第二学期高二期中自主检测数学试题(已下线)专题01 集合与常用逻辑用语-2020年高三数学(理)3-4月模拟试题汇编(已下线)专题1.1 集合(精练)-2021届高考数学(理)一轮复习讲练测北京市一七一中学2022届高三8月第一次月考数学试题
2 . 给定数列
,对
,该数列前
项的最大值记为
,后
项
的最小值记为
,
.
(1)设数列
为3,4,7,5,2,写出
,
,
,
的值;
(2)设
是
,公比
的等比数列,证明:
成等比数列;
(3)设
,证明:
的充分必要条件为
是公差为
的等差数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec41ff7fcb1c4fba6d30a8910fbe165c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f99d7c559ba0656046e63ab35da318f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce0f79b839f7642d567eb760b60b5e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5cbb18c252c89d040dbef1273d7c467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4976fe763ff8c9c5a893f28064d73803.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f94aa24198151207cd2e003662419d50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/048c8117488725891c92f1db3c5af9a6.png)
(1)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b2ec2cccb424df49c89a1348ad6f285.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ccdcfb8804ad9c77ffc2fc91eeb4d3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61264cdd877b6db34d3f4a400bb52d2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a99a84125bd89092d151118e9ad07a1.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dedc3eae16d98d5c5e5108c187d43bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc49fb6f3d806949ad10b7826b0969a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f2ae5cf66f4a16b6fff8277f76a6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8cb11ac8d295455a7a2747e168dc488.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8aa5c24766744e194574d31ca534c18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ba77c7f6cf14b8dc3415f1b4572af8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
3 . 方程
在区间[0,2π]上根的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72bfaecc77195b979162d8f6ad0c0e3b.png)
A.0 | B.1 | C.2 | D.3 |
您最近一年使用:0次
2020-01-18更新
|
257次组卷
|
2卷引用:北京市平谷区2019-2020学年高一上学期期末数学试题
解题方法
4 . 已知不等式
的解集为
.
(1)若
,求集合
;
(2)若集合
是集合
的子集,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19dd36d71d95f6d791fe97de7a24f6f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17ebe7a707338519deb49f7d62319c00.png)
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2020-10-24更新
|
238次组卷
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2卷引用:北京市精英未来学校2019-2020学年高一第一学期第一次月考数学试题
5 . 给定椭圆
:
,称圆心在原点
,半径为
的圆是椭圆
的“准圆”.若椭圆
的一个焦点为
,其短轴上的一个端点到
的距离为
.
(1)求椭圆
的方程和其“准圆”方程;
(2)设椭圆短轴的一个端点为
,长轴的一个端点为
,点
是“准圆”上一动点,求三角形
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da001dad7941e6c9858637d7b62cec59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ce47fde921058026708a4321a0e213.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设椭圆短轴的一个端点为
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2694c32ca1e120e988012b7ecd74f625.png)
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解题方法
6 . 已知函数
.
(i)当
时,满足不等式
的
的取值范围为__________ .
(ii)若函数
的图像与
轴没有交点,则实数
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f1019696d5442e820c2441487dcce0.png)
(i)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(ii)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-11-13更新
|
639次组卷
|
2卷引用:北京市平谷区2016—2017高三第二学期质量监控数学(理)试题
名校
7 . “
”是“曲线方程
表示焦点在
轴上的椭圆”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7091d529281abff275ef19b9197445a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1542c48f287494f0c5f70a5c9eb6bfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.充分而不必要条件 | B.必要而不充分条件 |
C.充分必要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2020-01-11更新
|
205次组卷
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2卷引用:北京市平谷区2019-2020学年高二上学期期末数学试题