名校
解题方法
1 . 已知函数
,
.
(1)求证:函数
为偶函数;
(2)集合
,
,若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bff9681471371af6e3d0934caee1004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ae0b568852a9f688a5fabbe0a1431e9.png)
(1)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5afc8e60a90bef6c1977838238ae42bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19ffa75321cd16a9f52bde1bcef2983f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
您最近一年使用:0次
名校
2 . 已知自然数集
,非空集合
.若集合E满足:对任意
,存在
,使得
,称集合E为集合A的一组m元基底.
(1)分别判断下列集合E是否为集合A的一组二元基底,并说明理由:
①
;
②
.
(2)若集合E是集合A的一组m元基底,证明:
;
(3)若集合E为集合
的一组m元基底,求m的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcaa2be7b1653f2371891e9a794f023d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a5002b44e87e59f1e1fda6a841de5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc020b0997a2f37b214718112b79d8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c059a6234c274a3aa626b20698263c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53613f4c8d697ad45bd08f29ef76f19e.png)
(1)分别判断下列集合E是否为集合A的一组二元基底,并说明理由:
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c93b026b2bd1f754bcee49e48c6bbb4.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3210812ece496c3ab3396e9ec2f0c6e.png)
(2)若集合E是集合A的一组m元基底,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e41403eba28ee0f497c79953b842ca1.png)
(3)若集合E为集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db1341ae10a275cd370eb014d0f505f3.png)
您最近一年使用:0次
2023-11-03更新
|
377次组卷
|
2卷引用:北京市人大附中2023-2024学年高二上学期期中数学试题
名校
3 . 设函数
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/01e71f54-b825-4bd0-bac6-202eb1a4db7f.png?resizew=309)
(1)在区间
上画出函数
的图像;
(2)设集合
,
.试判断集合
和
之间的关系,并给出证明;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90651aae49452b6a2b5f129fee854eb6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/01e71f54-b825-4bd0-bac6-202eb1a4db7f.png?resizew=309)
(1)在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4af5195336841d2264ee3a00ae43f85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d961d7718b08aa527d52f0c0c525b99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e712a7df4b398d21c4045a54e14c8004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
您最近一年使用:0次
2020-06-15更新
|
669次组卷
|
2卷引用:福建省福清市龙西中学2018-2019学年高二下学期期末考试数学(文)试题
名校
4 . 如图,
,
,…,
是曲线
:
上的点,
,
,…,
是
轴正半轴上的点,且
,
,…,
均为斜边在
轴上的等腰直角三角形(
为坐标原点).
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/23/b2034e94-d3c1-4242-8d48-c331aa9adc71.png?resizew=276)
(1)写出
、
和
之间的等量关系,以及
、
和
之间的等量关系;
(2)猜测并证明数列
的通项公式;
(3)设
,集合
,
,若
,求实常数
的取值范围.
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec56cfb1a9fc0288052b3f28b2fa49a.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1f03ef7428f116032cf2e55ae5226ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f98e1af1fdab6eda01b394925eb654f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/373ea575bc4285e85e9181d4a147f6c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7356ec98b600ece41f3a6b4bc26a7d59.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/23/b2034e94-d3c1-4242-8d48-c331aa9adc71.png?resizew=276)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7230de53663c75658c58bbf206a0085.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7230de53663c75658c58bbf206a0085.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a79b9eaa5e7ab7a1e5c512b571914dc8.png)
(2)猜测并证明数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eae1a490c5b3e566fbd5dcc143da84f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06c2682a120d14376dcf8727ddf52aee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/974df0397201630fa9ba88d5157f3e3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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