已知数列
,计算
,猜想
的表达式,并用数学归纳法证明猜想的正确性
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2049047f466918b8a075e1a9376f8d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f91ef8a227ce88669af0f6e8f44a3e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3903653955c424d3f6135edc5b47e231.png)
10-11高二下·山东聊城·阶段练习 查看更多[1]
(已下线)2010-2011年山东省莘县一中高二下学期第一次月考数学理卷
更新时间:2016-12-11 02:40:42
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相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】定义集合
与集合
之差是由所有属于
且不属于
的元素组成的集合,记作
且
.已知集合
.
(Ⅰ)若集合
,写出集合
的所有元素;
(Ⅱ)从集合
选出10个元素由小到大构成等差数列,其中公差的最大值
和最小值
分别是多少?公差为
和
的等差数列各有多少个?
(Ⅲ)设集合
,且集合
中含有10个元素,证明:集合
中必有10个元素组成等差数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1c3880c63ce7b6d63d2e750e769a3a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4e10255d9c38c5db2be76d20e809acb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4145f9a71b24150789ecb5a301da5c51.png)
(Ⅰ)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dffead0cccaa005fd8904688b9f510d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb5cb0be6ec660ff6eb629c930415a99.png)
(Ⅱ)从集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
(Ⅲ)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/952f1e0ce5bd53a6d5e8bb07ea2da5f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4bad080cc20dc6c55fc75d6376814c3.png)
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解题方法
【推荐2】已知i是虚数单位,
,
,
,
,
,
,
,
,…….观察上面的式子,能得出什么结论?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a67205a296ae84f38d70949514d82e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c789a7cd7ac2b8b96dc879c6c8161ee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/670d7f3106ae8ff5a97fd843e8f4b7b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13bbbd4b57c69492ea9abd3807aeca51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab27101304ae7c377c8898cfadbf0c96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0567c69fa7c2925685216155df4b2abf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c1ff4212fd954b8696f30d0c04fa84b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c5953a12401c514dfd7e105ebb21b52.png)
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解答题-应用题
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适中
(0.65)
名校
【推荐1】某企业的产品以往专销欧美市场,在全球金融风暴的影响下,欧美市场的销量受到严重影响,该企业在政府的大力扶助下积极开拓国内市场,并基本形成了市场规模;自
年
月以来的第
个月(
年
月为第一个月)产品的内销量、出口量和销售总量(销售总量
内销量与出口量的和)分别为
和
(单位:万件),依据销售统计数据发现形成如下营销趋势:
,
(其中
、
为常数),已知
万件,
万件,
万件.
(1)求
、
的值,并写出
与
满足的关系式;
(2)利用数学归纳法证明销售总量
一直小于
万件,并判断总销量是否逐月递增,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d01dd350dc95f42f1883e0cc7aae084.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d02ea8c4988c5c28ab93f0d70fb55a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d01dd350dc95f42f1883e0cc7aae084.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d02ea8c4988c5c28ab93f0d70fb55a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59e7c7a84a4bdb959e95536d0404ceb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5a45bb769abc2b5bfff2980fe887005.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/336bf1a0fdaebcb67f83d745184c0135.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c57b14334c35386bf8db7d777446d54d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/badf67dde744919cdaf64b60f153c87e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090426eb29836bc30c006b3739c08057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(2)利用数学归纳法证明销售总量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
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解答题-问答题
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适中
(0.65)
【推荐2】设数列
的前
项和为
,并且满足
,
.
(1)求
;
(2)猜想
的通项公式,并用数学归纳法加以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745cf320cf7bf01ddfae1d01b1d43d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64d2795e3e6e9fbe813bf0784bdcd7c9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a306c5e1f705cf4536c1fba77cbd04e.png)
(2)猜想
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
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