解题方法
1 . 对集合
,定义其特征函数
,考虑集合
和正实数
,定义
为
和式函数.设
,则
为闭区间列;如果集合
对任意
,有
,则称
是无交集合列,设集合
.
(1)证明:L和式函数的值域为有限集合;
(2)设
为闭区间列,
是定义在
上的函数.已知存在唯一的正整数
,各项不同的非零实数
,和无交集合列
使得
,并且
,称
为
和式函数
的典范形式.设
为
的典范数.
(i)设
,证明:
;
(ii)给定正整数
,任取正实数
和闭区间列
,判断
的典范数
最大值的存在性.如果存在,给出最大值;如果不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1304eb00ab95d664dc84385f602a8f09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f69939291758b5eaa19146f76709e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9304e71a623c4412188a800046a970d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee6c8ae5004f2ffe7f8392b4d3c39b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/238908949859936af0e109ef684599b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f69939291758b5eaa19146f76709e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f69939291758b5eaa19146f76709e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/937c09d82c480e4d67f8a48d3f66c5f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a02da5d46478a54d279755a295d548f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b56da93ba7a2dec958070eb2666240.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05386869739fb11a190c637ba8a93174.png)
(1)证明:L和式函数的值域为有限集合;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f69939291758b5eaa19146f76709e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20b4010030e10725398b64d4dcc09429.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0fa51de98f090eda3e3f60a26475db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecfcda4333678bafacc4c676c2836977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee06844034f61cab7d421d55179ee367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/359a16305129aeea0953efd9100f4b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7b4e32041b54703ade8e8c2cee01f13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed82555c7d6fc6b449fbdb1f68fef1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20b4010030e10725398b64d4dcc09429.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20b4010030e10725398b64d4dcc09429.png)
(i)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1462612f3654548c39489985987cb67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7870c36161f465fc992534b5fc3777f3.png)
(ii)给定正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9304e71a623c4412188a800046a970d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f69939291758b5eaa19146f76709e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20b4010030e10725398b64d4dcc09429.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2 . 称
是
的一个向往集合,当且仅当其满足如下两条性质:(1)任意
,
;(2)任意
和
,有
.任取
,称包含
的最小向往集合称为
的生成向往集合,记为
.
(1)求满足
的正整数
的值;
(2)对两个向往集合
,定义集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccbe16b433635b8bc25f303863807b70.png)
(i)证明:
仍然是向往集合,并求正整数
,满足
;
(ii)证明:如果
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/160af7e0b1d01eec9b33474b4d067a76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2077e5032491293f8181c4fc3bcf360a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3ad11a8563df9a39fbe386f746f755c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8104c761c3fac71e51c9a17a154829ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f27e8b43153beb780aa92d61df4b0da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c60cfb0de87efce8d98d89106fd36f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8060d3a485605dd9fedb3c5ae089c24e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c8f38fd2a2457ab28745c41c0f6b0aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9304e71a623c4412188a800046a970d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9304e71a623c4412188a800046a970d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/086eb439f6a1578fdba904825340772d.png)
(1)求满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c248f486fa233098501ba2a64422118.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)对两个向往集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0248166f5a50eb4fe7f8a02a2d8e397e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccbe16b433635b8bc25f303863807b70.png)
(i)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57a13c9838a7aa389c93dcbaf5ad0449.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deb92321829e1fa81061502157411cec.png)
(ii)证明:如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/528af17b6a22c9c808c4231ef395a0c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0161489025ecbc391b1c9affce57b930.png)
您最近一年使用:0次
解题方法
3 . 设M是由复数组成的集合,对M的一个子集A,若存在复平面上的一个圆,使得A的所有数在复平面上对应的点都在圆内或圆周上,且
中的数对应的点都在圆外,则称A是一个M的“可分离子集”.
(1)判断
是否是
的“可分离子集”,并说明理由;
(2)设复数z满足
,其中
分别表示z的实部和虚部.证明:
是
的“可分离子集”当且仅当
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33a2a51a8d747c5a61f259a3ddf3bd0e.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6f12a019ea4cab2a4143b39043157ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e6670f3947ae0329e5d9788b96c50f8.png)
(2)设复数z满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c86a4bfb6dd4bafcbe3c5c1aaead277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aff32d9320e0d72844f155f5c2acedb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/739598c5b7f2c8a97353a987b7392536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f77809bc2f616691dd7417b3d31df5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fae53a4b5ae5f0288d4d1ed6b41a7b11.png)
您最近一年使用:0次