1 . 若关于x的不等式
只有一个整数解,则实数a的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f9cef2aed97834bb553c8617a11ef4.png)
您最近一年使用:0次
名校
解题方法
2 . 已知数列
满足:
,设数列
的前
项和为
,若对于任意的
,不等式
恒成立,则实数
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b3fca60529a16e5d692a9413688afd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42bb625f34dd81cf351c588a8cba48b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4db06c0c23f20ad6548052c693dbec2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2024-01-30更新
|
1189次组卷
|
5卷引用:专题06 期末预测基础卷-2023-2024学年高二数学期末复习重难培优与单元检测(人教A版2019)
(已下线)专题06 期末预测基础卷-2023-2024学年高二数学期末复习重难培优与单元检测(人教A版2019)黑龙江省大庆市实验中学实验三部2024届高三上学期阶段考试(二)数学试题(已下线)专题09 数列求和6种常见考法归类(3)(已下线)专题08 求数列通项17种常见考法归类(4)(已下线)模块三 专题1 题型突破篇 小题入门夯实练(1)期末终极研习室(2023-2024学年第一学期)高三
名校
3 . 方程
表示一个圆,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a816dc53b23c4735e8744a633d65dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2024-01-13更新
|
539次组卷
|
4卷引用:上海市延安中学2023-2024学年高二上学期期末考试数学试卷
上海市延安中学2023-2024学年高二上学期期末考试数学试卷福建省福州市福建师大附中2023-2024学年高二上学期期末考试数学试题上海市格致中学2023-2024学年高二下学期期中考试数学试题(已下线)专题03 圆 曲线与方程(九大题型+优选提升题)-【好题汇编】备战2023-2024学年高二数学下学期期末真题分类汇编(沪教版2020选择性必修,上海专用)
4 . 若不等式
的解集为
,则
等于_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f5a3f4fac89aed9ee29850191e62ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05e839405d310e959aebf43e5403fdd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
您最近一年使用:0次
名校
解题方法
5 . 已知
,若
时,关于x的不等式
恒成立,则
的最小值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5e3e9866177f55f970442028eb9c292.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1df0dfb818f8636e8296f6435f14ab0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec956819ccd595ba49c2c37e324d58f4.png)
您最近一年使用:0次
2023-12-27更新
|
347次组卷
|
2卷引用:上海市建平中学2023-2024学年高二上学期第三次阶段学习评估(12月月考)数学试卷
解题方法
6 . 若两个正数
,
满足
,构造函数
,因为对一切实数
,恒有
,则
,即
,由此可得
.将上述分析推广到一般情形,有下面的结论:若
个正数
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8d2df78943eeed09cb11881c67db60c.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e572a65f80ea5b548b6f72b1110a8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de37dcb64583c54afbbb65eef2c7a194.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52440f9279c585ee32efcbaf6a30181f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54543a4606d73a1e1ebc891d65a57b35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee0e066a31a9c9c18b8c7e0592eee0fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f2b043b989216035c6fd985f1dd6a3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa2b75d8e91dd10e4aaaa5d51bede823.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8d2df78943eeed09cb11881c67db60c.png)
您最近一年使用:0次
名校
解题方法
7 . 若函数
,则
的解集为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73070728bf8a1550d91e3e383ef7c80a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8798557f8031f39382c568a52f4d449c.png)
您最近一年使用:0次
名校
解题方法
8 . 若直线
:
与圆
:
相交于
两点,
,则
的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9608ab848b9dab1c0d5aacabdaf1349e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/289ab3eb71a78a0e23474224c3816e33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
名校
解题方法
9 . 已知命题
:
,使得
,若
是真命题,则
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bb562af502e665a339456398580e876.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f1c8028039cfb9f1ee1cfcca0938441.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-11-18更新
|
260次组卷
|
2卷引用:四川省德阳市什邡中学2023-2024学年高二平实班上学期期中数学试题
解题方法
10 . 已知O为坐标原点,
,Q为抛物线
上任意一点,且
恒成立,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54259096ec6358dd555baf9510d43971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e8953ded144195804384dcb494d5e2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5785a7a692b9f340706da1aa1adea245.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次