名校
1 . 已知函数
,设关于
的方程
有
个不同的实数解,则
的所有可能的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e6d96153b3784bdeb9656977da33295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d62e043eb1dbddc347673b2b9d10947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.3 | B.4 | C.2或3或4或5 | D.2或3或4或5或6 |
您最近一年使用:0次
名校
2 . 已知
,函数
.
(1)当
时,求
的单调区间和极值;
(2)若
有两个不同的极值点
,
.
(i)求实数
的取值范围;
(ii)证明:
(
……为自然对数的底数).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e37c35e33ffa1a55a0693ae2319da91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d713aa9f44f9967e324f70b1a980f490.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd888afdcfdb3e91a157d50f65e915e.png)
(i)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(ii)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47b53f8e19a0140c9a01226142a44126.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5a35e5501b2700f624bd4a9144fc9ec.png)
您最近一年使用:0次
2022-05-20更新
|
1513次组卷
|
7卷引用:浙江省精诚联盟2022届高三下学期5月适应性联考数学试题
浙江省精诚联盟2022届高三下学期5月适应性联考数学试题(已下线)2022年高考浙江数学高考真题变式题13-15题(已下线)2022年高考浙江数学高考真题变式题19-22题(已下线)专题11 导数及其应用难点突破3-利用导数解决双变量问题-2黑龙江省牡丹江市第一高级中学2022-2023学年高三上学期期末数学试题(已下线)重难点突破06 双变量问题(六大题型)(已下线)模块四 专题2:导数大题分类练 (拔高卷)
3 . 已知
,函
,若函数
有三个不同的零点,
为自然对数的底数,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de92827a4d45bb8a1d76513eff60aa6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
4 . 已知函数
.
(1)当
时,若函数
的图象在点
处的切线斜率为e,求此切线的方程;
(2)讨论函数
的零点个数;
(3)当
时,证明:
.
注:
为自然对数的底数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96229591622403f0ad5fd685a4f488d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da08a1e144b0d0575bfd4862c5a4040.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e74be392285ffb6c2db1e9a767c0112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f9385f623747fc8264fc730a517391e.png)
注:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fa9b12852f286c2d26734a31b3b08c8.png)
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5 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/150cd5b4a6798759d40cda3302e2050e.png)
(1)当
时,讨论
的单调区间;
(2)当
时,若
有两个零点
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/150cd5b4a6798759d40cda3302e2050e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.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/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef683214216d6a5d9dcaeebdf61282e8.png)
您最近一年使用:0次
名校
6 . 已知
,设函数
是
的导函数.
(1)若
,求曲线
在点
处的切线方程;
(2)若
在区间
上存在两个不同的零点
,
①求实数a范围;
②证明:
.
注,其中
是自然对数的底数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cac4cc2a989614cefdc5c2b47fb8dd33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e1c9c97de9198d47306216e9961b80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
①求实数a范围;
②证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c54583adad5e66200380b98bb1c8cf54.png)
注,其中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c32719ba12045c6a71c3115bf61232e.png)
您最近一年使用:0次
2022-05-13更新
|
846次组卷
|
2卷引用:浙江省绍兴市嵊州市2022届高三下学期5月适应性考试数学试题
名校
7 . 已知函数
,若
在
存在零点,则实数
值可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1ba3bd2c65f11fe41ef3dd71174001f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22b419a704616921ef37f2b4cf9e582b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-05-12更新
|
1646次组卷
|
10卷引用:浙江省乐清市知临中学2023届高三下学期5月第二次仿真考数学试题
浙江省乐清市知临中学2023届高三下学期5月第二次仿真考数学试题东北三省四市教研联合体2022届高考模拟试卷(一)文科数学试题吉林省长春市2022届高三下学期质量监测(四)数学文科试题江西省南昌市八一中学2022届高三下学期三模数学(文)试题(已下线)3.6 零点定理(精练)-【一隅三反】2023年高考数学一轮复习(提升版)(新高考地区专用)(已下线)3.6 零点定理(精练)-【一隅三反】2023年高考数学一轮复习(提升版)(新高考地区专用)(已下线)专题03 函数图象、函数零点与方程-1(已下线)专题12 函数与方程-1(已下线)专题突破卷07 导数与零点问题2024届高三新高考改革数学适应性练习(九省联考题型)
解题方法
8 . 已知函数
,其中
.
(1)当
时,求函数
的最小值;
(2)当
时,证明:存在唯一正实数
,使得
,
(注:
是自然对数的底数)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfb3d6299d1ca2bd74c05a208b14d0cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ffecb03c47be920254c4ccffa5b222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26325d340702a91138961328ff8b5a75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b962bb3cf61d0fd2bc73a08765012926.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4462b1bfe47463adc9ae7257c2ba418a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6148e5b3434d00e0965909d10c3c8e25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11204e2fb6e560bf7a4ca26eaebfc526.png)
您最近一年使用:0次
9 . 已知函数
当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d3b15f7deb1cf3045d858de4869962.png)
__________ ,若函数
有3个不同的零点,则
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d2f38b47caef0c2e63d88e65fab9642.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d3b15f7deb1cf3045d858de4869962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
10 . 已知函数
,
(其中
是自然对数的底数)
(1)试讨论函数
的零点个数;
(2)当
时,设函数
的两个极值点为
、
且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2a5b397538ebe5ec0198af10fa877b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad70f8f8c5dfca37cf5941f5513c3a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/594663e98b797cdc4efbd098cc15854f.png)
(1)试讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa662f0273f0921c1fa4727f632395.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/dc1fa94c98894e88a197d380110a73fb.png)
您最近一年使用:0次
2022-05-09更新
|
1974次组卷
|
9卷引用:浙江省绍兴市上虞区2022届高三下学期第二次适应性考试数学试题
浙江省绍兴市上虞区2022届高三下学期第二次适应性考试数学试题(已下线)2022年高考浙江数学高考真题变式题13-15题(已下线)专题05 极值点偏移问题与拐点偏移问题(已下线)2022年高考浙江数学高考真题变式题19-22题(已下线)专题05 极值点偏移问题与拐点偏移问题-2(已下线)专题22极值点偏移问题(已下线)重难点突破05 极值点偏移问题与拐点偏移问题(七大题型)-1(已下线)考点21 导数的应用--极值点偏移问题 2024届高考数学考点总动员专题11导数研究双变量问题(解答题)