名校
1 . 已知函数
.
(1)讨论
的单调性;
(2)若对任意的
恒成立,求
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b14dee98f762932a2b717636a20306b2.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ebd963989c9b6a745172cba76189c16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
7日内更新
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3卷引用:福建省漳州市龙文区2024届高三6月模拟预测数学试题
名校
解题方法
2 . 定义:若对
恒成立,则称数列
为“上凸数列”.
(1)若
,判断
是否为“上凸数列”,如果是,给出证明;如果不是,请说明理由.
(2)若
为“上凸数列”,则当
时,
.
(ⅰ)若数列
为
的前
项和,证明:
;
(ⅱ)对于任意正整数序列
(
为常数且
),若
恒成立,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc9e587fa47050e45101bbfbfe129fa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3adcc926ce1056eefbad88408820424.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48407f815d07eb8b5dfa8d34b724512e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ede85acd5056e2907a48131e71c45411.png)
(ⅰ)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](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/0a62e059e03eda6884da213547097ed9.png)
(ⅱ)对于任意正整数序列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db6f1287d0218a833f34a97a9db24cef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e988e0b43c5730e1c104004514801d9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59c9507d571eb0de009f16f1837579f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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2024-04-10更新
|
702次组卷
|
4卷引用:福建省漳州市龙文区2024届高三6月模拟预测数学试题
福建省漳州市龙文区2024届高三6月模拟预测数学试题安徽省池州市第一中学2024届高三第一次模拟联合检测数学试题山东师范大学附属中学2024届高三下学期考前适应性测试数学试题(已下线)压轴题05数列压轴题15题型汇总-1
名校
3 . 已知函数
.
(1)讨论
的单调性;
(2)若不等式
恒成立,求
的取值范围;
(3)当
时,试判断函数
的零点个数,并给出证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca503660e161b422720a08a53c3af343.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f4f4efb776c41d4190aa1c08572905e.png)
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2024-03-12更新
|
1290次组卷
|
3卷引用:福建省漳州市2024届高三毕业班第三次质量检测数学试题
解题方法
4 . 已知函数
与
的图象有公切线
.
(1)求实数
和
的值;
(2)若
,且
,求实数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/872ce9b6f04a608dbfb39d271e5bacd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8016fa68266039752c3c32d8f1a3b77e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d31d3dffb55d744c8078ab73e1567c.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/595e39457184c29eff04824ad5c2b4de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5822881cd395bca43c2c147c9e35d4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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5 . 已知函数
的定义域为
,其导函数为
,且
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77235c696e1964d7d39de16a09f06649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae504935fef5ea96d02fad4bf5290e.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() |
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2023-06-20更新
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4卷引用:福建省漳州市2023届高三第四次教学质量检测数学试题
6 . 已知函数
.
(1)证明:当
时,函数
在区间
上不是单调函数;
(2)证明:当
时,
对任意的
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da38c3bb9f085a0b338dae69f51b780b.png)
(1)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb095e9f5abae37f91650bb8d751a977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047056c99b39c70fa40d3c8178e5b631.png)
您最近一年使用:0次
7 . 已知函数
.
(1)当
时,讨论
的单调性;
(2)若
,求证:当
时,对
,恒有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d2305087e54d3e47dc6aa975f0e273.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e70de22079680d48d6d1d9db6f4a77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48adb8a59b5c02fad5eada1b35171cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6a8984aa398bf767ccd9a601d77983.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44e312eca38032174f9739126b81d012.png)
您最近一年使用:0次
2023-02-14更新
|
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|
3卷引用:福建省漳州市2023届高三第二次质量检测数学试题
名校
解题方法
8 . 已知函数
.
(1)当
时,
,求
的最大值;
(2)设
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e1dd44305f27d60c823087ba90b92fb.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed7193e060713e7cc667846a1a1bc110.png)
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2022-09-11更新
|
1290次组卷
|
5卷引用:福建省漳州市2023届高三上学期第一次教学质量检测数学试题
9 . 已知函数
,
.
(1)求f(x)的单调区间与零点;
(2)若
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4edf3b1c4f83d7d889f3cde73992d6ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
(1)求f(x)的单调区间与零点;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/416696782bdfe5cfb60c614693473705.png)
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名校
解题方法
10 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baabd4983d1d405727bc825836767ef7.png)
(1)若
,求
的最小值;
(2)当
时,
,求a的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baabd4983d1d405727bc825836767ef7.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fb40a36a293471742ce75f6b9635b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b19a244a66dfde1ab433bdc8f88bfce1.png)
您最近一年使用:0次
2022-03-10更新
|
1384次组卷
|
5卷引用:福建省漳州市2022届高三毕业班第二次教学质量检测数学试题
福建省漳州市2022届高三毕业班第二次教学质量检测数学试题江苏省徐州市第七中学2022届高三下学期4月月考数学试题(已下线)三轮冲刺卷03-【赢在高考·黄金20卷】备战2022年高考数学模拟卷(新高考专用)江西省抚州市崇仁县第一中学2021-2022学年高二下学期第一次月考数学(理)试题黑龙江哈尔滨市第一二二中学校2021-2022学年高三假期检验性考试数学试题