名校
解题方法
1 . 设
,函数
.
(1)若
,求证:函数
是奇函数;
(2)若
,判断并证明函数
的单调性;
(3)设
,
,若存在实数m,n(
),使得函数
在区间[m,n]上的取值范围是
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d04bcc342e046321abc203690916602.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44a4eaa80b44625890339d6a0065c241.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb7961cbe98aac6a5fdee94582c341b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d45cf196f21e10ce4031d26fefc22f56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8573eecbc29f522671b3892ec406c50b.png)
您最近一年使用:0次
2022-01-21更新
|
713次组卷
|
8卷引用:江苏省南通市通州、海安2019-2020学年高一上学期期末联考数学试题
江苏省南通市通州、海安2019-2020学年高一上学期期末联考数学试题江苏省南通市通州区金沙中学2020-2021学年高一上学期第二次调研考试数学试题(已下线)【新东方】在线数学35上海市控江中学2021-2022学年高一上学期期末数学试题四川省四川师范大学附属中学2021-2022学年高一上学期12月月考数学试题(已下线)第13讲 函数的基本性质(8大考点)(3)(已下线)第13讲 函数的基本性质(8大考点)(2)(已下线)专题14函数的基本性质-【倍速学习法】(沪教版2020必修第一册)
名校
2 . 设
,函数
.
(1)已知
,求证:函数
为定义域上的奇函数;
(2)已知
.
(i)判断并证明函数
的单调性;
(ii)函数
在区间
上的值域是
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5029bd373d0a619fd342eeb67a03dd2e.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
(i)判断并证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(ii)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711e45f600c091e6830c0b70cd012ca3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ff0183cc03b2dd1262139df3b646b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8573eecbc29f522671b3892ec406c50b.png)
您最近一年使用:0次
3 . 设函数
的定义域分别为
,且
.若对于任意
,都有
,则称
是
在
上的一个延拓函数.给定
.
(1)若
是
在
上的延拓函数,且
为奇函数,求
的解析式.
(2)设
为
在
上的任意一个延拓函数,且
是
上的单调函数,试判断函数
在
上的单调性,并加以证明.
(3)在(2)的条件下,设
,求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83730858f0d211c2a1c88cfc6be86c8b.png)
(4)在(2)的条件下,求证:关于
的不等式
有解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8fd1e808e015f4cb43d2e3a0529ac6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0606be557187bb410105f7c9e7df32b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfb91ec2bc48fb25e9c5283276baa566.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b8531591e59e8ced5ff0d3b30764d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d1a94ea3c278c2197572cc1b7725b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48101d1755703877e99969012ddb4448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a7e4f8e865ce46a72c51d6138dc974c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdd5552324550304765749352051d850.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdd5552324550304765749352051d850.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
(3)在(2)的条件下,设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49d184eb79df0b07ea2d1d8aaeb291f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83730858f0d211c2a1c88cfc6be86c8b.png)
(4)在(2)的条件下,求证:关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77abe3f37ac14288395a24d8be0ca2c6.png)
您最近一年使用:0次
名校
4 . 对于集合
,其中每个元素均为正整数,如果任意去掉其中一个元素
之后,剩余的所有元素组成集合
,并且
都能分为两个集合
和
,满足
,
,其中
和
的所有元素之和相等,就称集合
为“可分集合”.
(1)判断集合
和
是否是“可分集合”(不必写过程);
(2)求证:五个元素的集合
一定不是“可分集合”;
(3)若集合
是“可分集合”.
①证明:
为奇数;
②求集合
中元素个数的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/425637f4b8d76efeb7caee752ecab595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c69ede8e6e69dcebd5106cdc6a392801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff22734fc4975205c623f769a84cac8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e819b87f90651d89fcd258c276294e43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/521c8f3f084af427ec1c464f8b6bed86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9995a8cbdc5222f6db7cfdef3e58c0a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(1)判断集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36cd2052417ccb1650cc533f62273aab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38aa0ba6ea6e8f10a2159defda4e67f8.png)
(2)求证:五个元素的集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1752a1d13ec6a233405fce4d5af61d8f.png)
(3)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/425637f4b8d76efeb7caee752ecab595.png)
①证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
②求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
您最近一年使用:0次
名校
5 . 已知集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/944960fa69073fa30905b08b9bcd1d32.png)
(1)证明:若
,则
是偶数;
(2)设
,且
,求实数
的值;
(3)设
,求证:
;并求满足不等式
的
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/944960fa69073fa30905b08b9bcd1d32.png)
(1)证明:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acfc595518cf752e1c7903dfff93dbda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13f40c24c64bbb0645fcf585f4e66872.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d34afba5f43d301946429980327d3be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fad1f1fff5c82010595cc84a8806b75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bd9a96e7e998e198796d19cece04bf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68769211e17a7504970e39d20fa1020a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a09b4427cd9d1ca6e0b7f7baabf2d1df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
2020-11-02更新
|
1003次组卷
|
7卷引用:重庆市万州第二高级中学2020-2021学年高一上学期10月月考数学试题
重庆市万州第二高级中学2020-2021学年高一上学期10月月考数学试题重庆市万州二中2020-2021学年高一上学期10月月考数学试题(已下线)1.1集合的概念(专题强化卷)-2021-2022学年高一数学课堂精选(人教版A版2019必修第一册)(已下线)知识点01 集合的概念与表示-2021-2022学年高一数学同步精品课堂讲+例+测(苏教版2019必修第一册)(已下线)1.1 集合的概念-【优质课堂】2021-2022学年高一数学同步课时优练测(人教A版2019必修第一册)(已下线)第01讲 集合的概念与表示(教师版)-【帮课堂】2021-2022学年高一数学同步精品讲义(苏教版2019必修第一册)(已下线)第二章 等式与不等式(压轴题专练)-速记·巧练(沪教版2020必修第一册)
解题方法
6 . 已知定理:“若a,b为常数,
满足
,则函数
的图象关于点
中心对称”,设函数
,定义域为A.
(1)试证明
的图象关于点
成中心对称;
(2)当
时,求证:
.
(3)对于给定的
,设计构造过程:
.如果
,构造过程将继续下去;如果
,构造过程将停止.若对任意
,构造过程可以无限进行下去,求a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/848df4eb73fcb06c262064e1049db419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c3d3eca937b665f6a6484d68ba72e8.png)
(1)试证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d9012ae3226e6f1d338f879c180ce63.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d56cfb272d729b7b1b9510d246747f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7368d91031473c697c9cd43cda57380.png)
(3)对于给定的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa273c6bf06db59f93c900e6bf8eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dbf2c2f1750bef15d8c2c129f495a26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b60a7337d2eb93fc80a7d2c5da7043c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cedd176503d53573b0d7ceb03d933700.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa273c6bf06db59f93c900e6bf8eb55.png)
您最近一年使用:0次
名校
解题方法
7 . 已知函数
.
(1)若
满足
为R上奇函数且
为R上偶函数,求
的值;
(2)若函数
满足
对
恒成立,函数
,求证:函数
是周期函数,并写出
的一个正周期;
(3)对于函数
,
,若
对
恒成立,则称函数
是“广义周期函数”,
是其一个广义周期,若二次函数
的广义周期为
(
不恒成立),试利用广义周期函数定义证明:对任意的
,
,
成立的充要条件是
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17422461d5ec2bff93452619c6b774f3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69b727eb9da56be079445321cf61cf26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2be344d1925b25e44f3f8b34d2c193ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b186e49220460b09f85519aa657527b.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbf03e1296f7f5bb315c87893caee079.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4056806dc4a2f28e267f879b6f5c0079.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78c204be088a8fc6c096eedd5b1e7dc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
(3)对于函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e06d64b48da95b74aa5e12bc5da127dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95c90d0f5f17344c0eb75c2aea394bb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2183ba00d69af06d9a950469b38cfe4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60a35277c37144276ead40bb74a51481.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2183ba00d69af06d9a950469b38cfe4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb05fd7662d05b9e2051b044de722840.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fd423a80d5b6fea8753fa1813cfbcc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/859458471c86ae39e0cc42d2d960d03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f05dd02b6f561dcf94bab8a3160108d5.png)
您最近一年使用:0次
2020-08-25更新
|
1051次组卷
|
6卷引用:2019年上海市建平中学高三三模数学试题
2019年上海市建平中学高三三模数学试题(已下线)专题2.3 函数的奇偶性与周期性(精讲)-2021年高考数学(理)一轮复习学与练(已下线)专题2.3 函数的奇偶性与周期性(精讲)-2021届高考数学(理)一轮复习讲练测上海市建平中学2019届高三下学期5月月考数学试题(已下线)3.2函数的基本性质-2020-2021学年高一数学同步课堂帮帮帮(人教A版2019必修第一册)(已下线)专题03 函数的概念与性质(模拟练)-2
8 . 已知函数:
且
.
(1)证明:
对定义域内的所有
都成立;
(2)当
的定义域为
时,求证:
的值域为
;
(3)设函数
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca507b9492083d2c881b824dc98e28ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7297210ecc4a06625860ef4215b42f7.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6870269f258c153030dc97c950698675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f69b3ada8af24923589888415f4dabe6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef2f9766c341bc0bd1362e8e2bd9f552.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3141a4cbf5e3e12ccca84f2d0427430e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
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2020-10-07更新
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643次组卷
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2卷引用:四川省成都七中万达学校2019-2020学年高一10月月考数学试题
9 . 令
(
).
(1)若
,
,试写出
的解析式并求
的最小值;
(2)已知
,
,令
,试探讨函数
的基本性质(不需证明);
(3)已知定义在
上的函数
是单调递增函数,
是周期函数,
是单调递减函数,求证:
是单调递增函数的充要条件:对任意的
,
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6af8694773f4b88f3d05c235a4343f1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba04e5ed6b9704ef23ef9b238a735469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cddaa639d1639a7f1b77ea99a312c00a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5790d5181783c15fd46d95bf18b796f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5790d5181783c15fd46d95bf18b796f0.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b923078510697d5f7f9ea392eb76dd9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e663a09cdcde628b5633a6ab07dd55b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbca41b6122e2490030c9747b40383a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5790d5181783c15fd46d95bf18b796f0.png)
(3)已知定义在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93c274f9ca9a7cb75f301fded804dcc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43920f5171ed31db2520ef00e4c5fc24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45c18002839db56a67890102bb53ca20.png)
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名校
10 . 定义:有限非空数集
的所有元素的“乘积”称为数集
的“积数”,例如:集合
,其“积数”
.
(1)若有限数集
,求证:集合
的所有非空子集的“积数”之和
满足
;
(2)根据(1)的结论,对于有限非空数集
(
),记集合A的所有非空子集的“积数”之和
,试写出
的表达式,并利用“数学归纳法”给予证明;
(3)若有限集
,
①试求由
中所有奇数个元素构成的非空子集的“积数”之和
奇数;
②试求由
中所有偶数个元素构成的非空子集的“积数”之和
偶数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb9ad1e34877b0db02d0219332b0f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb9ad1e34877b0db02d0219332b0f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/635cc4bb9a743b88c98fffad8ba1af00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc5787e5d2863aa157213424a4803245.png)
(1)若有限数集
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d020cd453031ae9eede7961ec78f21a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2319b6a5373bc8eb13772b8e6d047779.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b64379aceaa2d008a48356937130c9e.png)
(2)根据(1)的结论,对于有限非空数集
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ea7fcdb5423c1c8c032a3efcf245682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/576ea0f23e66276d14e99a90c149c0dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(3)若有限集
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f994206101b7f04f92c5d4e2dcae7b8d.png)
①试求由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb9ad1e34877b0db02d0219332b0f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
②试求由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb9ad1e34877b0db02d0219332b0f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
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