解题方法
1 . 甲、乙、丙三人以正四棱锥和正三棱柱为研究对象,设棱长为
,若甲从其中一个底面边长和高都为2的正四棱锥的5个顶点中随机选取3个点构成三角形,定义随机变量
的值为其三角形的面积;若乙从正四棱锥(和甲研究的四棱锥一样)的8条棱中任取2条,定义随机变量
的值为这两条棱的夹角大小(弧度制);若丙从正三棱柱的9条棱中任取2条,定义随机变量
的值为这两条棱的夹角大小(弧度制).
(1)比较三种随机变量的数学期望大小;(参考数据
)
(2)现单独研究棱长
,记
(
且
),其展开式中含
项的系数为
,含
项的系数为
.
①若
,对
成立,求实数
,
,
的值;
②对①中的实数
,
,
用数字归纳法证明:对任意
且
,
都成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b734e8f1546481e3eb4976008a045de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47f5817ab7b88e9d8a83dd086ffdb3c2.png)
(1)比较三种随机变量的数学期望大小;(参考数据
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d854a36c484c5e5400b11384dd120ea.png)
(2)现单独研究棱长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40c2ea763797a470a849899851c01d12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0a89e3c30f6e4d4c5db4378b05d987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/048651e049071a622651832e6446a75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d8978869e64ccf247c75fc6a3c71981.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/071a7e733d466949ac935b4b8ee8d183.png)
②对①中的实数
![](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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/048651e049071a622651832e6446a75e.png)
您最近一年使用:0次
2023高二上·江苏·专题练习
解题方法
2 . 已知无穷数列A:
,
满足:①
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed39e20a9dbb75b4b21260d27df85b90.png)
且
;②
,设
为
所能取到的最大值,并记数列
:
,
,….
(1)若数列A为等差数列且
,求其公差d;
(2)若
,求
的值;
(3)若
,
,求数列
的前100项和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c990e50aad1de332b6f9894634e6acfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed39e20a9dbb75b4b21260d27df85b90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eab47e3541d23a4cacac915d4384e6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a49997086be2e13a271a4a7b1d4c399.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d9a668c71d17815323b7ec482fd2cf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d00457e8d086f28ea1b24bd880c9848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f766f204cf98d973ad5abe03b235e95a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6398ba56f5a708d2d85a02320e1a389d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce8c641c42b6cd7f44c477bbe5761a41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7488ed7332650aa2bc908edbd38c05e8.png)
(1)若数列A为等差数列且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8323901a49cac29afd7d62864f088077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7104dd8a81267b6c15ceedcefccfa20.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9b6e51986fe5d7a7265e0e93adcb4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6398ba56f5a708d2d85a02320e1a389d.png)
您最近一年使用:0次
名校
3 . 数列
满足
为正整数
.
(1)试确定实数
的值,使得数列
为等差数列;
(2)当数列
为等差数列时,等比数列
的通项公式为
,对每个正整数
,在
和
之间插入
个2,得到一个新数列
,设
是数列
的前
项和,试求满足
的所有正整数
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcca40df9d18465b63df3e54c447fbb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
(1)试确定实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)当数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e4b5779873cb3f4366dbfdb983dec81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f255d0395fba51ca2d44293cca42e0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/217b927efe12a98e1082ecd7f035b921.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/233427826eb2233641fc3a9805f6d206.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a9fa3fe6f0cb2c66dc7c864785368f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
解题方法
4 . 已知无穷数列A:
,
,…满足:①
,
,…
且
;②
,设
为
所能取到的最大值,并记数列
:
,
,….
(1)若数列A为等差数列且
,求其公差d;
(2)若
,求
的值;
(3)若
,
,求数列
的前100项和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3df437d00ab1fd773e9d8d8f378455f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a49997086be2e13a271a4a7b1d4c399.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78f63f64193d72aca5e88a2ea51e5ffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d00457e8d086f28ea1b24bd880c9848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f766f204cf98d973ad5abe03b235e95a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6398ba56f5a708d2d85a02320e1a389d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce8c641c42b6cd7f44c477bbe5761a41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7488ed7332650aa2bc908edbd38c05e8.png)
(1)若数列A为等差数列且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8323901a49cac29afd7d62864f088077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7104dd8a81267b6c15ceedcefccfa20.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9b6e51986fe5d7a7265e0e93adcb4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6398ba56f5a708d2d85a02320e1a389d.png)
您最近一年使用:0次
2023-04-02更新
|
644次组卷
|
4卷引用:江苏省南京市2024届高三上学期零模考前押题数学试题
江苏省南京市2024届高三上学期零模考前押题数学试题上海交通大学附属中学闵行分校2022-2023学年高二下学期3月月考数学试题上海市交通大学附属中学2022-2023学年高二下学期3月卓越考试数学试题(已下线)4.4 数学归纳法(五大题型)(分层练习)-2023-2024学年高二数学同步精品课堂(沪教版2020选择性必修第一册)
真题
解题方法
5 . 已知m,n为正整数.
(1)用数学归纳法证明:当
时,
;
(2)对于
,已知
,求证
,
;
(3)求满足等式
的所有正整数n.
(1)用数学归纳法证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adc3e5be1796493161a4df7e28a6f6b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d201fdbbff12486f31b5688fc0a0747e.png)
(2)对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/831608f09609c37f757f5bfcd01253f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/186c794ebbde3237056af29cb97778f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42c70b3e66c0852233e54c1ba772fa97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b91f85fc4d2f3894351dd2c4d4f5c975.png)
(3)求满足等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64a4cace6fc5c0f94904a33a643adadf.png)
您最近一年使用:0次
2022-11-09更新
|
1343次组卷
|
4卷引用:江苏省苏州市吴中区2018-2019学年高二下学期期中数学(理)试题
江苏省苏州市吴中区2018-2019学年高二下学期期中数学(理)试题2007年普通高等学校招生考试数学(理)试题(湖北卷)(已下线)专题1 数学归纳法及其变种 微点1 数学归纳法(已下线)第二篇 函数与导数专题4 不等式 微点2 伯努利不等式
解题方法
6 . 已知
,(其中
).
(1)当
时,计算
及
;
(2)记
,试比较
与
的大小,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fd8ae629fb0bba502e5434f2392a486.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c345907ebe27888332b1b44c666cc47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f7dcce39f3d4dc6b7faf84dc1d0a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed70cf593e473e304e218637b06ec9b5.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aabd537345fb304124ba9fbfa39517b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/185feb9bc0a28bc4c5aed2cabb5c6ae0.png)
您最近一年使用:0次
2022-09-28更新
|
679次组卷
|
5卷引用:江苏省苏州市五校2019-2020学年高三上学期12月月考数学试卷
江苏省苏州市五校2019-2020学年高三上学期12月月考数学试卷(已下线)预测11 计数原理-【临门一脚】2020年高考数学三轮冲刺过关(江苏专用)河南省信阳市固始县2019-2020学年高二下学期期中数学(理科)试题(已下线)专题1 数学归纳法及其变种 微点3 数学归纳法综合训练(已下线)2023-2024学年高二下学期期中复习解答题压轴题十七大题型专练(2)
名校
解题方法
7 . 设实数
,整数
,
.
(1)求证:当
且
时,
;
(2)若数列
满足
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cec12441802f71e803efaf2c62ee588.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dab9e79198239cda875305fd6809b5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655c46b33730f3a29b9ec3024df71375.png)
(1)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adc3e5be1796493161a4df7e28a6f6b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01710dd52c8fcfd6253697797b330453.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc83fb4addffeea536d86c995ce07e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec62b45a80f43a4f96d1b113c15bfcca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db9afb66ba0ecc3f23993b587fa1f9a3.png)
您最近一年使用:0次
2023-05-23更新
|
587次组卷
|
13卷引用:2020届江苏省南通市通州区高三下学期第一次模拟测试数学试题
2020届江苏省南通市通州区高三下学期第一次模拟测试数学试题福建省师范大学附属中学2016-2017学年高二下学期期中考试数学理试题(已下线)2019高考备考一轮复习精品资料 【理】专题十三 导数的概念及其运算 教学案(已下线)2019高考备考一轮复习精品资料 【理】专题十四 导数在函数研究中的应用 教学案(已下线)2019高考热点题型和提分秘籍 【理数】专题10 导数的概念及运算 (教学案)沪教版(上海) 高三年级 新高考辅导与训练 第二部分 走近高考 第四章 数列与数学归纳法高考题选(已下线)专题33 算法、复数、推理与证明-十年(2011-2020)高考真题数学分项(八)(已下线)专题1 数学归纳法及其变种 微点1 数学归纳法(已下线)第二篇 函数与导数专题4 不等式 微点2 伯努利不等式(已下线)第三篇 数列、排列与组合 专题2 多边形数、伯努利数、斐波那契数、洛卡斯数、明安图数与卡塔兰数 微点3 伯努利数(已下线)【一题多解】 构造数列 单调有界(已下线)【一题多解】 构造数列 单调有界1(已下线)专题21 数列解答题(理科)-3
解题方法
8 . 如图所示,
,
,…,
,…是曲线
(
)上的点,
,
,…,
,…是x轴正半轴上的点,且
,
,…,
,…均为等腰直角三角形(
为坐标原点).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/1ffc8f62-96ab-455a-9972-4df3009665de.png?resizew=238)
(1)求数列
的通项公式;
(2)设
,求
.
![](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/8af2d78b119739a1242e1ae274a9198a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc65d6eb9b63f96d80b54ec9893aee8d.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/0f097e3c2591eeae50ba0d92b984d625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/add8209d60d4bb35d09a0338d3e5e165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6696f67db73ba4a3eca968af0323f27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7356ec98b600ece41f3a6b4bc26a7d59.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/1ffc8f62-96ab-455a-9972-4df3009665de.png?resizew=238)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a388dd60ad00d4874a9af61a1d09f054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
您最近一年使用:0次
2021-09-25更新
|
554次组卷
|
2卷引用:江苏省南通、盐城 、淮安、 宿迁等地部分学校2021-2022学年高一上学期第一次大联考数学试题
名校
9 . 定义数列
如下:
,对任意的正整数
,有
.
(1)写出
,
,
,
的值;
(2)证明:对任意的正整数
,都有
;
(3)是否每一个非负整数都在数列
中出现?证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7882fcd2daeb34ad11983155b474cd3c.png)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65fc200f10b97588a0c9896277c9c64.png)
(2)证明:对任意的正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/051d406f2e4e9e4232e349d277f58a81.png)
(3)是否每一个非负整数都在数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
您最近一年使用:0次
2021-09-02更新
|
561次组卷
|
6卷引用:第4章 数列 单元综合检测(重点)(单元培优)-2021-2022学年高二数学课后培优练(苏教版2019选择性必修第一册)
(已下线)第4章 数列 单元综合检测(重点)(单元培优)-2021-2022学年高二数学课后培优练(苏教版2019选择性必修第一册)(已下线)4.4 数学归纳法(课堂培优)-2021-2022学年高二数学课后培优练(苏教版2019选择性必修第一册)(已下线)4.4 数学归纳法-2022-2023学年高二数学《基础·重点·难点 》全面题型高分突破(苏教版2019选择性必修第一册)北京市清华大学附属中学2020-2021学年高二下学期期中数学试题(已下线)2020年高考北京数学高考真题变式题16-21题北京市十一学校2022届高三4月月考数学试题
解题方法
10 . 已知数列
满足
,
,其中
为常数,
.
(1)求
,
的值;
(2)猜想数列
的通项公式,并用数学归纳法证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d406c2720003288caf34e6f524595be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d8e8f821111de8075e5c3dfb22a5d6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
(2)猜想数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
您最近一年使用:0次
2021-09-21更新
|
616次组卷
|
6卷引用:2020届江苏省南京市十校高三下学期5月调研数学试题
2020届江苏省南京市十校高三下学期5月调研数学试题江苏省2020届高三下学期高考压轴卷数学试题(已下线)预测11 计数原理-【临门一脚】2020年高考数学三轮冲刺过关(江苏专用)人教A版(2019) 选修第三册 突围者 第六章 第二节 课时2 组合与组合数(已下线)第02讲 排列与组合(核心考点讲与练)-2021-2022学年高二数学下学期考试满分全攻略(人教A版2019选修第二册+第三册)(已下线)6.2.3 组合(分层作业)-【上好课】2022-2023学年高二数学同步备课系列(人教A版2019选择性必修第三册)