名校
1 . 已知
.
(1)当
时,①
在
处的切线方程;②当
时,求证:
.
(2)若存在
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bcdaf2d1cce51739042b4d288e10476.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302337058242c7b78e3eb4ac7210b7ce.png)
![](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/a154aa77357cb73cbcd37275d873a324.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac2cf7611fe0dcb43c208591b92bf7a4.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/952c63e17684725850b58abcac91e6e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13bdea0d11b9846a7eb3ca05c3c61718.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-05-24更新
|
661次组卷
|
5卷引用:黑龙江省哈尔滨师范大学附属中学2017届高三第三次模拟考试数学(理)试题
名校
解题方法
2 . 已知函数
.
(1)若
,求证:当
时,
;
(2)若存在
,使
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf1dc5d629aa09850396345b4350cdd0.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13435e83a00aa1cbe911717b9d4fbc3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc340fb9f2d7e8a1909a3864244bc227.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a3b9d341ef12bbbe43a4a63e26ae68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c5c11e8a5c8834bb8c758511b50829c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-05-18更新
|
543次组卷
|
2卷引用:黑龙江省哈尔滨师范大学附属中学2017年高三第三次模拟考试数学(文)试题
名校
解题方法
3 . 已知
,
,
,则
是
的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4138f6987cd2ee9e56b2ac80e84f9e24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4fe89edd9ec3dd661c126e3aaa3f35f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50c575802a5444d80c2382dedeceb3df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
A.充分不必要条件 | B.必要不充分条件 | C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2017-05-18更新
|
384次组卷
|
2卷引用:黑龙江省哈尔滨师范大学附属中学2017年高三第三次模拟考试数学(文)试题
名校
解题方法
4 . 已知函数
.
(1)若
时,求证:当
时,
;
(2)若存在
,使
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf1dc5d629aa09850396345b4350cdd0.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2428d03e07fd61dbfc209629ddb33873.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a3b9d341ef12bbbe43a4a63e26ae68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65dfd616152bb8bf9696613cefcf51d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
5 . 已知函数
,其中
,
,
是自然对数的底数.
(Ⅰ)讨论
的单调性;
(Ⅱ)设函数
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da0255ef2567bcf62cf595fcb881a413.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(Ⅰ)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(Ⅱ)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c79819087ef0979d62284e850f02d161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8148436d0fb5d370b5672176ed2577d0.png)
您最近一年使用:0次
2017-04-18更新
|
1001次组卷
|
2卷引用:黑龙江省哈尔滨市第六中学2017届高三下学期第三次模拟考试数学(文)试题
6 . 定义:设
为
上的可导函数,若
为增函数,则称
为
上的凸函数.
(1)判断函数
与
是否为凸函数;
(2)设
为
上的凸函数,求证:若
,
,则
恒有
成立;
(3)设
,
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f972a7a1d05b45cffb5a291f0863c7e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c904567c3b3734e1eca8d042ef7a7b2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1c0ad4912c99ad44b0e527e2722fd51.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16066c1a4393f732989201e5766e856f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0be516d7109c22c6511bf67b1e47e370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ed4c15e43316c0913e5d6a4d1c6b2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc820b77cebd4e1e698ad58770fe543.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a521891098b625f372ff648d110afe1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3ccd744ef15b64e0cb4ef148c28cf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a47cf167580ec6be2320eb37b340fec4.png)
您最近一年使用:0次
名校
解题方法
7 . 已知函数
,(
).
(1)若函数
与
的图象在
上有两个不同的交点,求实数
的取值范围;
(2)若在
上不等式
恒成立,求实数
的取值范围;
(3)证明:对于
时,任意
,不等式
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571ff78b1057d2cca3f2b4c29998acb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03db4ea1dcb63b22cf4e917df5db581e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/960f2ae73779c22f00966789b973c4b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)证明:对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bce2594833690eedb3328fe747feb3a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fff6e7e2b9f2b68b1647f6350b98dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f8ecde435ecdfda35fa2b7159b0e6a6.png)
您最近一年使用:0次
2013·江西南昌·二模
8 . 已知函数
(其中
为常数).
(1)当
时,求函数
的单调区间;
(2)当
时,设函数
的3个极值点为
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfd66af470ac903f1e4add0a2748478b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1310a7a80d1f8751a3f8cafe7f8c8b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84e059c431cb970c41b39ac331ac2445.png)
您最近一年使用:0次
2017-03-01更新
|
2073次组卷
|
8卷引用:2015届黑龙江省哈尔滨六中高三上学期期末考试理科数学试卷
2015届黑龙江省哈尔滨六中高三上学期期末考试理科数学试卷(已下线)2013届江西南昌10所省重点中学高三第二次模拟冲刺理科数学试卷(六)(已下线)2014届四川省成都石室中学高三上学期期中考试理科数学试卷2016届湖南省长沙市雅礼中学高三月考三理科数学试卷2016届湖南师大附中高三上学期第四次月考文科数学试卷2015-2016学年黑龙江省哈尔滨六中高二下期中理数学试卷2017届安徽省池州市东至县高三12月联考数学(理)试卷江苏省盐城市2022-2023学年高三上学期期中复习数学试题
名校
解题方法
9 . 已知函数
.
(1)若
在
处取得极小值,求
的值;
(2)若
在
上恒成立,求
的取值范围;
(3)求证:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c6391131de160fd6a96724d70c43a36.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8cd36edcc1439abfb8daa649ee3512e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/130ab7a635323d182a0da76e9fe25aed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ece1cabeedc0da3de06bd8b7753cdf52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd18e15beae3d49de756f416bc89d885.png)
您最近一年使用:0次
2016-12-05更新
|
991次组卷
|
3卷引用:2017届黑龙江虎林一中高三上月考一数学(理)试卷
名校
10 . 已知函数
.
(1)当
时,求曲线
在
处的切线方程;
(2)当
时,讨论函数
的单调性;
(3)当
时,记函数
的导函数
的两个零点是
和
(
),求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb6f0a6647ba8e93c69e64cde3520c3a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48adb8a59b5c02fad5eada1b35171cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec9e3429431cbbc27bd9f2f030f26a82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/976834c63fdc07823f02424318d95536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f972a7a1d05b45cffb5a291f0863c7e9.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/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb1d07f386f941c01333885b1a5833f4.png)
您最近一年使用:0次
2016-12-04更新
|
590次组卷
|
5卷引用:黑龙江省哈尔滨市第一中学2020届高三6月第一次模拟数学(文)试题
黑龙江省哈尔滨市第一中学2020届高三6月第一次模拟数学(文)试题2017届江苏南京市高三上学期学情调研数学试卷12017届江苏南京市高三上学期学情调研数学试卷2(已下线)《2018届优等生百日闯关系列》【江苏版】专题二 第四关 以极值为背景的解答题山西省太原市外国语学校2021-2022学年高二下学期5月联考数学试题