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1 . 已知集合
,则集合
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ec9db8628cc13f39407b452586fa7dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c48fd7c33272e2a2bf492e5cc3364fb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-05-04更新
|
1289次组卷
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4卷引用:吉林省长春市第八中学2023-2024学年高二下学期期中考试数学试题
2 . 已知数列
的各项均为正整数,设集合
,
,记
的元素个数为
.
(1)若数列A:1,3,5,7,求集合
,并写出
的值;
(2)若
是递减数列,求证:“
”的充要条件是“
为等差数列”;
(3)已知数列
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7f885247785940c5c849210fb6f8abc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4884c506476f191d7919cd266c8c0212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47a0c2bb484bf523189b093485eca999.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1ff5cb5a9d88ed7db2c06683c3e355.png)
(1)若数列A:1,3,5,7,求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1ff5cb5a9d88ed7db2c06683c3e355.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3197c615558fee3993d2a8deb9091f0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(3)已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d509697c5391a7c24d9bbc2c82422b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ff241fc46c23ac975c5b39e87a9e46a.png)
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2024-04-19更新
|
329次组卷
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4卷引用:吉林省长春市长春吉大附中实验学校2023-2024学年高二下学期5月期中考试数学试卷
吉林省长春市长春吉大附中实验学校2023-2024学年高二下学期5月期中考试数学试卷黑龙江省双鸭山市友谊县高级中学2024届高三下学期高考模拟(一)数学试题(已下线)2024年北京高考数学真题平行卷(基础)(已下线)集合与常用逻辑用语-综合测试卷B卷
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解题方法
3 . 已知函数
,且
.若
时,
恒成立,则m的取值范围为___________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79f9631420660bf176b1fb4e111885b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172dd7f1d734264058036e70642d56ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b2379f8d97dac6f7ddf3f262968768.png)
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解题方法
4 . (1)已知二次函数
满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c292ad5ab432ba87d945d952ae84d2b8.png)
,且
,求
的解析式;
(2)已知
是
上的奇函数,当
,求
的解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c292ad5ab432ba87d945d952ae84d2b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac200a9106723cd0d4749339ea677e5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51eb2613dda00677d447c986cac505bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed3f754a17f348f21dfc07fe729bcf60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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解题方法
5 . 设
是定义在
上的奇函数,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5dca08f5a2f8b2729b8f857973b78af.png)
___________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5dd34c59cc6d24cfcda03c4425d7491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004ccc72ce2d293699c9ca7b0f600786.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5dca08f5a2f8b2729b8f857973b78af.png)
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6 . 已知函数
,则
__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/834751c8412699c179f58d2aa06169fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e71302c92b4d66e79f4a5f756d931c6.png)
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7 . 下列命题中正确的是( )
A.已知函数![]() ![]() ![]() ![]() ![]() |
B.已知定义在![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
C.函数![]() ![]() ![]() ![]() ![]() |
D.函数![]() ![]() ![]() |
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8 . 下列命题中正确的是( )
A.已知![]() ![]() ![]() ![]() |
B.![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
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9 . 函数
在
上单调递减,则t的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb6377ac81dbc1267fe890e7276bd1e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3654254401fc902c3cb4912969f21f88.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2023-09-12更新
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1473次组卷
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4卷引用:吉林省辽源市第五中学校2023-2024学年高一上学期期中数学试题
吉林省辽源市第五中学校2023-2024学年高一上学期期中数学试题黑龙江省大庆市2024届高三第一次教学质量检测数学试题广东省东莞市虎门中学等七校2024届高三上学期联考数学试题(已下线)第01讲 4.1指数+4.2指数函数—【练透核心考点】
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10 . (1)计算:
;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9343981cb5714d905c3d3d3ce813556d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d873727b837fd3acdce4aa0fcdfbe54d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbc0debc92674a63d453efc9ff5079c0.png)
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