名校
解题方法
1 . 已知函数
.
(1)当
时,
恒成立,求
的取值范围;
(2)设
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68d608407a12846ee52845751b84471c.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fb40a36a293471742ce75f6b9635b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/385d802db44c85df39ed0eb07ecce90e.png)
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2卷引用:河北省邢台市名校联盟2023-2024学年高二下学期第三次月考(6月)数学试题
名校
解题方法
2 . 设A,B,C,D为抛物线
上不同的四点,A,D关于该抛物线的对称轴对称,
平行于该抛物线在点D处的切线l.设点D到直线
和直线
的距离分别为
,
,已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5edf900c810371fb21297c15f86d8743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31ac1def558351e2e3ed1235c570530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84bbe19f0e503b3126f409460288b8f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb04cecda15f15130411851e4e41398d.png)
A.![]() | B.![]() | C.1 | D.![]() |
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3卷引用:河北省邢台市第一中学2023-2024学年高二下学期期中测试数学试题
名校
解题方法
3 . 已知函数
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6430ca4934ea1099dccec3dc95de15b.png)
A.若![]() ![]() |
B.若![]() ![]() ![]() |
C.![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() |
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2024-05-28更新
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2卷引用:河北省邢台市第一中学2023-2024学年高二下学期期中测试数学试题
4 . 已知定点
,
轴于点H,F是直线OA上任意一点,
轴于点D,
于点E,OE与FD相交于点G.
(1)求点G的轨迹方程C;
(2)过
的直线交C于P,Q两点,直线AP,AQ的斜率分别为
和
,证明:
为定值;
(3)在直线
上任取一点
,过点B分别作曲线C:
的两条切线,切点分别为M和N,设
的面积为S,求S的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c179fe7eff7abfdd092b63c9c1b82d0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7277dcfb480720f2f37413cb0d34d09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09e7ec9f3e17dbb0362a8c9aac629a15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a91621dc26d771853fd1f0d9bdf04c7.png)
(1)求点G的轨迹方程C;
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edaef66a0582e95fb5c57a405acdea9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e1efe96e7776f1b5dfa92c295f8d97d.png)
(3)在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefa44964db83759aff6fc8dd7ef8f28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/906fc0c4a747cfa348986baefbd02752.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d0469336f71edd52dc9148c67db052.png)
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名校
解题方法
5 . 已知函数
的图象与直线
,恰有三个公共点,这三个点的横坐标分别为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/420625e56e7877ee86ad409cf9ab6b77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c997ce8b8eee3a3f70a5a85c1ace28b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a28dbe7537c53bbb0770aa15a471779.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93f32ede26236f3db513670bea0412f2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
6 . 在函数极限的运算过程中,洛必达法则是解决未定式
型或
型极限的一种重要方法,其含义为:若函数
和
满足下列条件:
①
且
(或
,
);
②在点
的附近区域内两者都可导,且
;
③
(
可为实数,也可为
),则
.
(1)用洛必达法则求
;
(2)函数
(
,
),判断并说明
的零点个数;
(3)已知
,
,
,求
的解析式.
参考公式:
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/955689923ebe1be46168295644f4a178.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ef9c42b3bfeac3b11f6f2f7c5227967.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e7490f915131bdb436285e3fb284817.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ba30ad5f21a62879bba0aee45b81507.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e530f639eaa27858ed7db451e2ed576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e4658c5369aa8a25ea8580f524e87da.png)
②在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf90c83ba8da83994264cb5b8b2f15f4.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56af5e590e8152c9a7ded6209e446ced.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0de3f06b6df7b949c5e6b406a661079f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f32baa7d29934cde8a5203388ed18c6.png)
(1)用洛必达法则求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/782ec35f212cb1448863b4b15e806814.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/161ab6e6a97905ea5bb2b3fc390ab7d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deda945164283569437cda6976fe35ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ddd2a1b30b9ad891172f7f21c5a2701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc2b7be871fef904c94ef6360ee32bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f385eacc118fe9b5f0c23182929d6a50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
参考公式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9005b464218c70a9963452693645cf2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9949db821a880972efbfb32354cd6bd.png)
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2024-04-24更新
|
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|
5卷引用:2024届河北省邢台市部分高中二模数学试题
2024届河北省邢台市部分高中二模数学试题(已下线)模块4 二模重组卷 第3套 全真模拟卷(已下线)专题14 洛必达法则的应用【练】河南省郑州市宇华实验学校2024届高三下学期5月月考数学试题河北省衡水中学2023-2024学年高三下学期期中自我提升测试数学试题
7 . 已知函数
.
(1)判断
的单调性;
(2)当
时,求函数
的零点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/793d611e689986951b99307bbc0a6d53.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78d65cd83710143ac3ae8f77b7e1f832.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28d91867b6946d333e6574d6f9e0d84d.png)
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2024-04-07更新
|
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|
3卷引用:河北省邢台市五岳联盟2024届高三下学期模拟预测数学试题
名校
解题方法
8 . 若不等式
在
上恒成立,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/610bf256922471562f0f7fa05f9b7f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
9 . 若关于x的不等式
在
上恒成立,则实数a的值可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bda3287c1633641564b9fd250540d8d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99f68c6ed09e483db6edf0b4caf5e252.png)
A.![]() | B.![]() | C.![]() | D.2 |
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2024-03-09更新
|
1560次组卷
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5卷引用:2024届河北省邢台市部分高中二模数学试题
名校
10 . 在数列
中,若存在常数
,使得
恒成立,则称数列
为“
数列”.
(1)若
,试判断数列
是否为“
数列”,请说明理由;
(2)若数列
为“
数列”,且
,数列
为等比数列,且
,求数列
的通项公式;
(3)若正项数列
为“
数列”,且
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8158441521b4c35044b2c27b0df96d19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e93815f534a9ba003799aef2a53a242.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075f4a124ee7f174909a106a94f5ad42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e93815f534a9ba003799aef2a53a242.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e93815f534a9ba003799aef2a53a242.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/196c99381f37d23ce5c7ba450d98330b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(3)若正项数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e93815f534a9ba003799aef2a53a242.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8141d87fb02b08c88b0c9f27f839a7d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fff6e7e2b9f2b68b1647f6350b98dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eb4bba6777941fbf01de6094c3ff21d.png)
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2024-03-06更新
|
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5卷引用:河北省邢台市第一中学2023-2024学年高二下学期期中测试数学试题