解题方法
1 . 已知函数
.
(1)若方程
在区间
内有且仅有两个不同的实数解
.
①求实数a的取值范围;
②证明:
.
(2)设函数
的零点按从小到大的顺序依次为
,极值点按从小到大的顺序依次为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce30917f4f30c79eb1164f16feedf43c.png)
(1)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338316b0fe50fdea0f2f75aec4c990dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb106bdbfc9fe4f82ae8eaa80db66306.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
①求实数a的取值范围;
②证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21cf1974c4f9fd94ad52a5062a1099f8.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3f50584e5e040938569f224e1bebcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/594ece58873a4e5e170c80974a8d24eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17567492ed0e5d9c78396df3e44775c8.png)
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名校
2 . 已知函数
,
是
的导数,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cd8bb49e63aa6a805746153fc888fdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
A.曲线![]() ![]() ![]() |
B.![]() ![]() ![]() |
C.对于任意的![]() ![]() |
D.直线![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-01-05更新
|
1874次组卷
|
4卷引用:2023届新高考高三模拟数学试题
2023届新高考高三模拟数学试题2023年普通高等学校招生全国统一考试数学模拟演练(一)(已下线)第四章 导数与函数的零点 专题四 导数中隐零点问题 微点1 导数中隐零点问题(一)湖北省襄阳市襄州区第一高级中学2022-2023学年高三下学期开学考试数学试题
名校
3 . 已知函数
,其中
,函数
在
上的零点为
,函数
.
(1)证明:
①
;
②函数
有两个零点;
(2)设
的两个零点为
,证明:
.
(参考数据:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7495c0f25cf04e5e59bb4ae43ffc4fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c940cb46e4a6eae0b7172414c965b66f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c353f6bf5422164ef1496838ba1e6de0.png)
(1)证明:
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ffa38ec984cae2089a6061c5b231dc5.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05f127c78da4fd62e8e98f2262400bda.png)
(参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2995cf1665e01b853555e62aeaf0ac31.png)
您最近一年使用:0次
2022-12-16更新
|
1827次组卷
|
4卷引用:T8联考2023届高三第一次学业质量评价数学试题
4 . 已知函数
,
,(
,
为自然对数的底数),
.
(1)若
与
在
处的切线相互垂直,求
的值并求
的单调递增区间;
(2)若
,
,
,且
,证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bad889fec9bf544f9b3284fe15bc7d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f76d3d1e4462c69a891ec8369390e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0492ebe28c861d84e8262c17e49a1f1a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ffecb03c47be920254c4ccffa5b222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc48b174cbda0de80c22c24aa97f30e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/325a8a9ead58fc2d2fe39a050e980f1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/997ea12adc7ef7713dbcfb976a76ce91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a8fb7e3ef9a540b0d27a39f204ff308.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/472d871d5b9443a5a58b3647808a14d0.png)
您最近一年使用:0次
名校
5 . 已知函数
和
,若
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9cc7f5b6853e3e6d0b8ba16ea81edc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9963dcc20d9a6467213797e65f947426.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23b2604e5f8be78fbe6cafcb9b7f2f0.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2022-07-08更新
|
1409次组卷
|
9卷引用:2023年高三数学押题密卷五
名校
解题方法
6 . 已知函数
.
(1)当
时,若
在
上恒成立,求实数
的取值范围;
(2)设
为
的两个不同零点,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8961f3e23305cd86f359680a84a3d3eb.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4248159219a3e8d481f6af8584945a62.png)
您最近一年使用:0次
名校
解题方法
7 . 已知函数
.
(1)求函数
的最小值;
(2)若方程
有两实数解
,求证:
.(其中
为自然对数的底数).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40ab948e5df77b57035f6b2717700858.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e409849c921f4868c5a78abffb9f74bb.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d297da393c2035fd4184db3ddcf5eac4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef5ee58a4983da76e7c34675d3da3451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fa9b12852f286c2d26734a31b3b08c8.png)
您最近一年使用:0次
2022-05-25更新
|
1964次组卷
|
4卷引用:粤湘鄂名校联盟2023届高三上学期第一次联考数学试题
2022·全国·模拟预测
8 . 已知函数
,
.
(1)若
,求
的单调区间与极值;
(2)令函数
,若存在
,
使得
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dce901f67aae4b04a9aa5c64909e7698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b053fcfbdb442f5e40dbff4408b94fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)令函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f02aa2ef357da793375a4471d7a242b4.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/fa5f4aadc17b6d5c9760a75fab7fb760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ce088c5ec0273d49b10d83921b566b8.png)
您最近一年使用:0次
2022·全国·模拟预测
解题方法
9 . 已知
,e为自然对数的底数.
(1)设
在
上的最小值为m,证明:
;
(2)若
恒成立,求最大整数a的值.(参考数据:
,
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34b7dd3ba509ad7303cf62eb901d61cb.png)
(1)设
![](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/0b4c2f88891702c1caac5fd8d7edb3ea.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d88b10708d3fe0bebaff025969932b82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a80d0cbe26bbac441eceb3e71a29010e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/493569b8bad204edcd6a80e93aadccc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04b6c4f27aae9b1f3d3b8342ccc74784.png)
您最近一年使用:0次
解题方法
10 . 已知函数
在
处取得极值.
(1)求
的值及函数
的极值;
(2)设
有三个不同的零点
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8c9c0e5a032d8744a9dd2c95a08ce01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2acfe9ce15c7eaf2a531aad1011d1be4.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/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c06ceee2b1e227de025476eee95672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/799f93049fa4028519ee3044f992dc34.png)
您最近一年使用:0次
2022-05-16更新
|
792次组卷
|
2卷引用:河北省张家口市2022届高三第三次模拟数学试题