2023高三·全国·专题练习
解题方法
1 . 对于函数
,若存在
,使得
成立,则称
为
的不动点.已知二次函数
,满足
,且
有两个不动点
,记函数
的对称轴为
,求证:如果
,那么
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f07ad90ca228230b03f12eb48ee0c1d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73bc955d158efde0bdd62d14a60a65e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8ee0bd8a541d6c1057325f7f4287a64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f54ab7aa1626be6d6f53e26148e1e27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8145f597cf3de8a6581953dab5f1d558.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e7891769c0298d101a282eb8f6bc81c.png)
您最近一年使用:0次
2022高三·全国·专题练习
解题方法
2 . 已知函数
.
(1)
(1)
成立,求
的取值范围;
(2)若
在区间
上有两个零点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c92294103b1317ca530f5eb075f668d7.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23a6ce9eed9d3d6a6967572baa68d3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022d5937428ab378be468ceca636220.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e6b685cee0668f1f2400324a81ee62.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fef9380b394a4bd829c83a5a5b4c859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3f5c08e8b47798c6454665ef6d5aa39.png)
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2022高三·全国·专题练习
3 . 设不等式组
表示的平面区域为
,设
内整数坐标点的个数为
.设
, 当
时,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf7014de5cbe63dca175543775c19814.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d4e8502106802f1485c3b0f28f2664.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d4e8502106802f1485c3b0f28f2664.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ab5587f937dcd892b7cc0b69065b126.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65d52ce074304be72992e6695a44f71c.png)
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20-21高二·全国·单元测试
真题
解题方法
4 . 已知函数
在x=x1处取得极大值,在x=x2处取得极小值,且0<x1<1<x2<2.
(1)证明:a>0.
(2)求z=a+2b的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e609f47d458be6266f79f32c3709c.png)
(1)证明:a>0.
(2)求z=a+2b的取值范围.
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名校
5 . 已知函数
(
,且
、
).设关于
的不等式
的解集为
,且方程
的两实根为
、
.
(1)若
,完成下列问题:
①求
、
的关系式;
②若
、
都是负整数,求
的解析式;
(2)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98410b6a864a6d41bac8e218dcbaa3ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d285a4c557fc9748105b62ccd94b7859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f803a468e5d66004e57372a5bf2c5e1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29e44284cb19805a584880a686ac3df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44dcdeef5b18b3a9b0588ecee88293e.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
②若
![](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/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/479a8ef1ad7f1e7d2d057cd39acc3d5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9b198d7d0a68d2785108e56de24bdc7.png)
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2011·江苏泰州·一模
解题方法
6 . 已知在直角坐标系中,
,其中数列
,
都是递增数列.
(1)若
,
,判断直线
与
是否平行;
(2)若数列
,
都是正项等差数列,设四边形
的面积为
,求证:
也是等差数列;
(3)若
,记直线
的斜率为
,数列
的前8项依次递减,求满足条件的数列
的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/114453ee0f9e29f6fe6d067a5cfb86a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ff1c33b81ac2f065d37faef37504bb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81496535a302e25c366e3ffa46e0c54b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34876d748f30fa4fc2eb6a686b5ff5.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0f2a8097208d996bf69f9b0795b0e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f28a37df20bc98a159298d483cfd05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce224c28ca451c4f105dc3b077736cb.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2087289744656ad50177af641ea79420.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374cb268ffa23fc0bf12c6e6dc873c4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bbbf4d763f3cbe5a71707bc19c78191.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b311784db139326c27b72a3d55e29c31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
您最近一年使用:0次
解题方法
7 . 已知函数
.
(1)若函数
在
上存在两个极值点,求
的取值范围;
(2)当
时,求证:对任意的实数
,
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c739e789d615607e36cf0158f862c998.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba317690c72a1d29babd8c6d303b0eaa.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f883172d7697efc0269788a819399ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790daaa89fc9d093f45023becf765697.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc9d77d4ce6e22e052caf4af914ebcb.png)
您最近一年使用:0次
解题方法
8 . 已知函数
,其图象记为曲线
.
(Ⅰ)若
在
处取得极值为
,求
的值;
(Ⅱ)若
有三个不同的零点,分别为
,且
,过点
作曲线
的切线,切点为
(点
异于点
).
①证明:
;
②若三个零点均属于区间
,求
的取值范围.
![](https://img.xkw.com/dksih/QBM/2015/6/16/1572126863876096/1572126869356544/STEM/9af78a75d8fc4523911030f2fdf67a5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅰ)若
![](https://img.xkw.com/dksih/QBM/2015/6/16/1572126863876096/1572126869356544/STEM/90f4ad34f7a44c63be3b8d7167f5b763.png)
![](https://img.xkw.com/dksih/QBM/2015/6/16/1572126863876096/1572126869356544/STEM/7ea7c211d3434643bb8cd40356b8074b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccf1f029bb36d7d199ed2b782490c424.png)
![](https://img.xkw.com/dksih/QBM/2015/6/16/1572126863876096/1572126869356544/STEM/770b285cbe584241b3e33950c80f1835.png)
(Ⅱ)若
![](https://img.xkw.com/dksih/QBM/2015/6/16/1572126863876096/1572126869356544/STEM/90f4ad34f7a44c63be3b8d7167f5b763.png)
![](https://img.xkw.com/dksih/QBM/2015/6/16/1572126863876096/1572126869356544/STEM/a7d308c31366419a8cbf28a6e58898c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a4571aedd81ea196788b129a8078e5.png)
![](https://img.xkw.com/dksih/QBM/2015/6/16/1572126863876096/1572126869356544/STEM/c6e2b75cad72427bae551e676e4dc364.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46564307a340acbec55c2824129a2399.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://img.xkw.com/dksih/QBM/2015/6/16/1572126863876096/1572126869356544/STEM/a3fe943e0c424adebaed2041dbe47a7d.png)
①证明:
![](https://img.xkw.com/dksih/QBM/2015/6/16/1572126863876096/1572126869356544/STEM/4ea53a17555542ca8ea785ead78ec332.png)
②若三个零点均属于区间
![](https://img.xkw.com/dksih/QBM/2015/6/16/1572126863876096/1572126869356544/STEM/d7624fa9f0194b0e9d64690b4411ee9d.png)
![](https://img.xkw.com/dksih/QBM/2015/6/16/1572126863876096/1572126869356544/STEM/bb4bae22d76c4a928513438063fc9397.png)
您最近一年使用:0次
解题方法
9 . 设不等式组
所表示的平面区域为Dn,记Dn内整点的个数为an(横纵坐标均为整数的点称为整点).
(1)n=2时,先在平面直角坐标系中作出区域D2,再求a2的值;
(2)求数列{an}的通项公式;
(3)记数列{an}的前n项的和为Sn,试证明:对任意n∈N*,恒有
<
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7e437a78bc869782662d4ffb3037db8.png)
(1)n=2时,先在平面直角坐标系中作出区域D2,再求a2的值;
(2)求数列{an}的通项公式;
(3)记数列{an}的前n项的和为Sn,试证明:对任意n∈N*,恒有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20512dab8b0bfbab878365646ecd3727.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f16d09692f7b0fb5633964437202d21d.png)
您最近一年使用:0次
2016-12-03更新
|
327次组卷
|
2卷引用:2015届湖南师范大学附属中学高三第一次月考文科数学试卷