解题方法
1 . 已知集合
,
.
(1)若
,均有
,求实数
的取值范围;
(2)若
,设
,
,求证:
是
成立的必要条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbdd554d014590a23cfac06de3bda440.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac39d8afe38aca6b52b43641a274ea54.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd170c506a8ce70f550f5751ae016ca6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/653bcf7b627c3b87fcb310732313d9b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79df3000f987277819847391e0548c3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ba27566052abbb25340b6499ae3044a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7848c89302a41e9576530313fc3e61b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db40961f2dcdf88ac84a8f739317b191.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
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2022-11-24更新
|
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5卷引用:河北省沧州市沧州市运东三县2023-2024学年高一上学期9月联考数学试题
名校
解题方法
2 . 已知定义在
上的函数
满足:①对任意正实数x,y,都有
;②当
时,
.
(1)判断函数
在
上的单调性,并证明;
(2)若
,集合
,
(
且
),且
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6521ef75f0a05fe62cdfd2fbbe0430b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b4ed4485745f1d259a3953c242b9cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91bdfdbcb82294bd3c42c5c9ae0201cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dfe77025195423c01af52379d9e4984.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f1ba0a1129741502600e47bf058c98.png)
您最近一年使用:0次
2021-04-14更新
|
352次组卷
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2卷引用:河北省张家口市第一中学(衔接班)2020-2021学年高二下学期期中数学试题
3 . 已知集合A为 函数
的定义域,
集合
.
(1)若
,求a的值;
(2)求证:
是
的充分不必要条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05cda5b53647a8d7e4ac31ad2f45b169.png)
集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f12984d777021761b6a4d25a4f5dc44.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0584ed68a578ed4bc1871e5e80c82c3f.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0029a98741d5cd83a654240c3e5ad414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1be998a38602f0ae3e966868a28e9e0.png)
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2016-12-03更新
|
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2卷引用:2016届河北省定州中学高三第一次月考理科数学试卷