1 . 已知函数
,若
为实数,且方程
有两个不同的实数根
.
(1)求
的取值范围:
(2)①证明:对任意的
都有
;
②求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d488434e60a50e5f169dd08e182d88e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338316b0fe50fdea0f2f75aec4c990dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)①证明:对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/088234750a98688e796ca62766786c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e200ff97acbe51b2d32e758d5475d869.png)
②求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e17d6042655dfabc54b3fa696b1c4384.png)
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名校
解题方法
2 . 若函数
在
上有定义,且对于任意不同的
,都有
,则称
为
上的“
类函数”.
(1)若
,判断
是否为
上的“3类函数”;
(2)若
为
上的“2类函数”,求实数
的取值范围;
(3)若
为
上的“2类函数”,且
,证明:
,
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f20b947d584a1dc48676c2ae6e2af52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2a699f43d6836c18eaced5758a37a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1a1e91f59720cbed58a6d7b22846a92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0bfc7afa8d767367d796e2d6f07b128.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7754cc9374c8193dadb6875fb8a3fefb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/823352aa4db5e1d052d4048008df8db5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/673207f6b77b8192d25463d071737b7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17641d15644d5fb2c79fd1016b21520f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b1ab2e5e3dd3a1c768a88eb182b44d9.png)
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2024-01-25更新
|
2102次组卷
|
13卷引用:江西省上饶市六校2024届高三第一次联合考试(2月)数学试卷
江西省上饶市六校2024届高三第一次联合考试(2月)数学试卷广东省茂名市2024届高三一模数学试题广东省2024届高三上学期元月期末统一调研测试数学试卷江西省2024届高三上学期一轮总复习验收考试数学试题安徽省阜阳市阜阳一中2023-2024学年高二下学期开学检测数学试题2024年新高考模拟卷数学试题(九省联考题型)(已下线)专题22 新高考新题型第19题新定义压轴解答题归纳(9大核心考点)(讲义)湖南省长沙市雅礼实验中学2023-2024学年高二下学期收心检测数学试题(已下线)2023-2024学年高二下学期第一次月考解答题压轴题十六大题型专练(1)河北省保定市唐县第一中学2023-2024学年高二下学期3月月考数学试题河北省石家庄一中2023-2024学年高二下学期第一次月考数学试题四川省仁寿实验中学2023-2024学年高二下学期4月期中考试数学试题吉林省长春市朝阳区长春吉大附中实验学校2023-2024学年高二下学期4月月考数学试题
名校
3 . 已知函数
.
(1)求函数
的图象在
处的切线方程;
(2)求证:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84c4f38db4d8cdf2d3720b3aef032e5e.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663f9af86fdc4387b4541d0329573a29.png)
您最近一年使用:0次
2020-09-22更新
|
530次组卷
|
7卷引用:江西省上饶市横峰中学2020届高三下学期高考适应性考试数学(理)试题
江西省上饶市横峰中学2020届高三下学期高考适应性考试数学(理)试题河南省郑州市2018届高三毕业年级第二次质量预测理科数学试题(已下线)2017-2018学年度下学期高中期末备考【通用版】高二【精准复习模拟题】C【拔高卷01】【理科数学】(教师版)四川省成都市龙泉驿区第一中学校2019届高三12月月考数学(理)试题陕西省西北工业大学附属中学2019届高三下学期模拟训练(4)数学(理)试题(已下线)专题09 导数压轴解答题(证明类)-1(已下线)模块三 大招8 不等式证明——分割与放缩
名校
解题方法
4 . 设函数
.
(1)当
求函数
的单调区间和极值;
(2)若存在
满足
,证明:
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fbc3f31619189fb4b59bd4bd948c7de.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e68a83b4093280ea8750677f6828bf47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d579a616f7e45191a93a89cbcde394b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d674a22cf118828d91d89450568c961.png)
您最近一年使用:0次
5 . 已知函数
.
(1)讨论函数
的单调区间情况;
(2)若函数
有且只有两个零点
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4843fe4fb40da346cd9a97813b5a81.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6d6fce0e54ebf5fbf5e7b9963adf3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42ff8eb247b05281922aa073cf9ad91c.png)
您最近一年使用:0次
2020-06-03更新
|
320次组卷
|
3卷引用:2020届江西省上饶市高三三模数学(理)试题
6 . 已知函数
,
,
(1)当
时,求函数
的最小值.
(2)当
时,对于两个不相等的实数
,
,有
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54e8fac584f94d8e561b232404558573.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e9222ffc26c0e6bfbf252ab5d8a520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2037b0bad7c7a312bac1ac0653d9a491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/475c9073257b3d0760e2c6051a82d592.png)
您最近一年使用:0次
2019-09-15更新
|
556次组卷
|
2卷引用:江西省上饶市2018-2019学年高二下学期期末数学(理)试题
7 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90592229a66c7da12b4a5ba29eca1ab2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec3e3bcd67cf1a355986c6e3132470c7.png)
(1)若函数
在
处取得极值,求实数
的值;
(2)若
,且函数
的图像恒在
图像下方,求实数
的取值范围;
(3)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba729dfba8c029d0e0300ecf7e3c69a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90592229a66c7da12b4a5ba29eca1ab2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec3e3bcd67cf1a355986c6e3132470c7.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb8f7623b1fe8a0633f28dca44d22eea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2e292bf6eefec7d3429e9e232da3e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefa44964db83759aff6fc8dd7ef8f28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd8c1befada2104dd7c37865e0e55702.png)
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8 . 观察以下运算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f46ae8d5843a51f939fa9c6eeca3816.png)
⑴若两组数
与
,且
,
,运算
是否成立,试证明.
⑵若两组数
与
,且
,
,对
,
,
进行大小排序(不需要说明理由);
⑶根据⑵中结论,若
,试判定
,
,
大小并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f46ae8d5843a51f939fa9c6eeca3816.png)
⑴若两组数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0158862238e250d2a2598b7d4ecd148.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2bc85af36f64be115dd7c5d88fac6a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48bcea6c63239231fd680be4f87ab2e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f0bfa4719f88b3ca3362b814cbd0d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc173058ba51d63ba705db238e60522f.png)
⑵若两组数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c14d9ae06f864498048d55088ff4e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33b6f99a33b14f53fb398a195aa2ec3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94db0f34978c908a3e8f2197d55d8482.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c74055878ade01710968851251952439.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d29c441af0406fbe1e37be80615d891b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2137b8e760fad621b20d8cdb5601cd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed08487c798e8c8ecdbb7ccc3a4f14b9.png)
⑶根据⑵中结论,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a521891098b625f372ff648d110afe1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc73233aefc0d84e61f43138437e705f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8979ce9de5d4c56f426bbb6424574f59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b29b6d4e0589353a8a83f7699d72bfa.png)
您最近一年使用:0次
名校
9 . 已知函数
.
(Ⅰ)讨论函数
的单调性;
(II)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66ce4b61348d11082407aec4cecad26f.png)
(Ⅰ)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
(II)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29485889add98bfee58c97f57c78559f.png)
您最近一年使用:0次
2018-08-08更新
|
621次组卷
|
3卷引用:江西省上饶市广丰县第一中学2022届高三上学期期末模拟数学试题
江西省上饶市广丰县第一中学2022届高三上学期期末模拟数学试题【全国校级联考】山东、湖北部分重点中学2018届高三高考冲刺模拟试卷(五) 文科数学试题(已下线)考点14 利用导数解决综合问题-备战2022年高考数学典型试题解读与变式
13-14高二下·山东济宁·阶段练习
名校
10 . 已知函数
.
(1)若x=2是函数f(x)的极值点,求曲线y=f(x)在点(1,f(1))处的切线方程;
(2)若函数f(x)在
上为单调增函数,求a的取值范围;
(3)设m,n为正实数,且m>n,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ee4879569d9acbe8c30cc3ccd4f034.png)
(1)若x=2是函数f(x)的极值点,求曲线y=f(x)在点(1,f(1))处的切线方程;
(2)若函数f(x)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
(3)设m,n为正实数,且m>n,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c20d12ee53b84aa2fc18ef97215fd2.png)
您最近一年使用:0次
2017-10-09更新
|
1267次组卷
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6卷引用:江西省横峰中学、铅山一中、德兴一中2018届高三上学期第一次月考数学(理)试题
江西省横峰中学、铅山一中、德兴一中2018届高三上学期第一次月考数学(理)试题(已下线)2013-2014学年山东省济宁市嘉祥一中高二5月质量检测理科数学试卷江苏省南京市溧水高级中学2018届高三上学期期初模拟考试 数学黑龙江省大庆实验中学(实验三部)2019-2020学年高二3月月考数学(理)试题湖南省娄底市双峰县第一中学2019-2020学年高二下学期入学考试数学试题(已下线)考点14 利用导数解决综合问题-备战2022年高考数学典型试题解读与变式