解题方法
1 . 已知等差数列
中,
.正项数列
前
项和
满足:对任意
成等比数列.
(1)求数列
的通项公式:
(2)记
.证明:对任意
,都有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff6a3259d0b06b2c5447f8d8953b7f17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.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/b9e11f3e5dba10d23c5df50e44544f7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a623a04879910c69a00fdcdb4d45c6ad.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6dcba920904a03e3f950e962cc8c7ad.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5220323d149ef30fbd8dd7844b71c1d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5cf9c12181dd8683944b2b30bf8e08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d98e5c8dc3221d350816b62c8211029.png)
您最近一年使用:0次
2 . 已知函数
,其中a,b,
.
(1)当
时,求函数
的单调区间;
(2)若对任意
,都有
恒成立,求实数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11976693acdf39ca341f1a2e115ba075.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48adb8a59b5c02fad5eada1b35171cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c47545bd5310d9c5c8de5f64a2a6e2e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5aa200de40134d6c0c865a9bc7ecb3b.png)
您最近一年使用:0次
名校
解题方法
3 . 已知
为定义在
上的奇函数,且当
时,
取最大值为1.
(1)写出
的解析式.
(2)若
,
,求证
(ⅰ)
;
(ⅱ)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/886d2d7da83c74826a757bffc10183a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/195fc747e2fc50cb6df2c844d51e4d80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc85a01f2a5b003d545aabd58658f430.png)
(ⅰ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/935d2dec00d5584f549d9135df57d4ff.png)
(ⅱ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e89c48120fe5326e9b1c718d948816d0.png)
您最近一年使用:0次
名校
4 . 已知数列{an}满足a1=2,
(n∈N*).
(1)求证:数列
是等比数列;
(2)比较
与
的大小,并用数学归纳法证明;
(3)设
,数列{bn}的前n项和为Tn,若Tn<m对任意n∈N*恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a04e45f0f7233e1766ba93f36fafb0f3.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0210bf1fb13af42d057c1cf7ccdf7e92.png)
(2)比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/245460a7f2be54fa45095316e71014a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0763ff5f577b56744a5969dd1ab8f86.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe115795f19a35c719a10c729edd9885.png)
您最近一年使用:0次
2020-10-27更新
|
822次组卷
|
11卷引用:【校级联考】浙江省浙北G2期中联考2018学年高一第二学期数学试题
【校级联考】浙江省浙北G2期中联考2018学年高一第二学期数学试题【校级联考】浙江省嘉兴市第一中学、湖州中学2018-2019学年高一下学期期中考试数学试题浙江省浙北G2联考2018-2019学年高一第二学期期中考试数学试题(已下线)专题6.6 数学归纳法(讲)- 浙江版《2020年高考一轮复习讲练测》(已下线)专题08 数列的通项、求和及综合应用 第一篇 热点、难点突破篇(练)-2021年高考数学二轮复习讲练测(浙江专用))(已下线)第四章++数列2(能力提升)-2020-2021学年高二数学单元测试定心卷(人教A版2019选择性必修第二册)(已下线)第四章++数列1(能力提升)-2020-2021学年高二数学单元测试定心卷(人教A版2019选择性必修第二册)(已下线)专题7.6 数学归纳法(讲)-2021年新高考数学一轮复习讲练测(已下线)第04讲 数学归纳法-【帮课堂】2021-2022学年高二数学同步精品讲义(苏教版2019选择性必修第一册)(已下线)专题28 证明不等式的常见技巧-学会解题之高三数学万能解题模板【2022版】(已下线)第04讲 数学归纳法(核心考点讲与练)-2021-2022学年高二数学考试满分全攻略(人教A版2019选修第二册+第三册)
5 . 已知数列
满足
,
,
,
.
(1)证明:数列
是等比数列;
(2)求数列
的通项公式;
(3)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9652f65b28e2032c0cbc2a9649db4f51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e70b04fb4879fd9b98a103c793414c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e97769855336d73371930df1f187875e.png)
(1)证明:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ecdd983fbc86b85780272ceaa485213.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f460051e994f6e23bd5810a40f7bd21a.png)
您最近一年使用:0次
2020-02-19更新
|
2835次组卷
|
4卷引用:浙江省杭州市学军中学2020届高三下学期高考模拟数学试题
6 . 已知数列
满足:
,
.
(1)求证:
时,
;
(2)记
,
,求证:
;
(3)在(2)的条件下,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4791a3aa5bc76e309bc46efa1e15a52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f91f6478219ac36d487e8bb204b1f908.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/457f75159c7d1a6489ffcf3c2d2eda17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e7dcca2acb8fb6e6a6933a02e0a130b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc1f5d407c0e99344ed5f0f5926c5d22.png)
(3)在(2)的条件下,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00fb75ddd3accc66959494f44d1aebcc.png)
您最近一年使用:0次
名校
7 . 已知数列
、
满足
,
,
,
.
(Ⅰ)求证:
;
(Ⅱ)设数列
的前
项和为
,求证:
;
(Ⅲ)设数列
的前
项和为
,求证:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86fc336b4a83bf6d66c4afcc431597f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad6d8a8a57db1c2fc7f465d2cfd2aa78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b71406c902e2bfb15f5b84ea419611e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5530b78617f9a9976adc605a71fe0d48.png)
(Ⅰ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e970038ed20d95a45c228ee5572861.png)
(Ⅱ)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0441e285d990afd18061376145503267.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/b704bf47e74f620c582874c58d9f0993.png)
(Ⅲ)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e468312d09c6563c9094b710a35a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c91b2a778937512218c0cb49ea728eb1.png)
您最近一年使用:0次
解题方法
8 . 已知数列
满足
,
.求证:当
时,
(Ⅰ)
;
(Ⅱ)当
时,有
;
(Ⅲ)当
时,有
.
![](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/d4f47558bbba6deebd57286647039f58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
(Ⅰ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9645bd4d2002993b90ec6d48f9c04f7.png)
(Ⅱ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ae9f862d9c4f663a0fa786e56895440.png)
(Ⅲ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfc1715a0491fddb0403799d34e0daa0.png)
您最近一年使用:0次
2018·浙江·模拟预测
9 . 已知无穷数列
满足:
,
.
(Ⅰ)证明:
;
(Ⅱ)证明:
;
(Ⅲ)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16c8d0474f7d81ef8dbefaacfd5afe7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc8d10c1380ebb932326c463c3ba4638.png)
(Ⅰ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c97196b48332671f6c5ee6eebb61c9.png)
(Ⅱ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7683fb921612c0fc234b9ea329eb16c5.png)
(Ⅲ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f9cbc1de7c2e50d9ae614e07acf.png)
您最近一年使用:0次
解题方法
10 . 已知数列
满足,
.
(Ⅰ)求证:
;
(Ⅱ)求证:
;
(Ⅲ)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c216de44cb0c30ffddfbf2555cfc522c.png)
(Ⅰ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4e08f70737c8f10caab2dbc8795a04f.png)
(Ⅱ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19759afbac3208f15cc3f752e298daa1.png)
(Ⅲ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d64616323e54948d5041a57eb008ce6e.png)
您最近一年使用:0次