1 . 函数
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4cec4155e87d372a443f337bf62f2af.png)
A.当![]() ![]() ![]() |
B.当![]() ![]() ![]() |
C.对任意![]() ![]() ![]() |
D.存在![]() ![]() ![]() |
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2024-06-08更新
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224次组卷
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7卷引用:专题09导数与函数的单调性-2022年新高三数学暑假自学课精讲精练
(已下线)专题09导数与函数的单调性-2022年新高三数学暑假自学课精讲精练(已下线)第40练 导数在研究函数中的应用山东师范大学附属中学2022届高三下学期高考考前检测(打靶题)数学试题河北省唐县第一中学2022-2023学年高二上学期9月月考数学试题福建省三明第一中学2023届高三上学期第二次月考数学试题辽宁省沈阳市东北育才学校科学高中部2023-2024学年高二下学期期中考试数学试题江西省宜春市丰城中学2023-2024学年高一下学期第三次段考(5月月考)数学试题
名校
2 . 已知函数
,则下列选项中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb4668987b91f6aad9312c2ccebb33ac.png)
A.![]() |
B.![]() |
C.若方程![]() ![]() |
D.若![]() ![]() |
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3 . 已知函数
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d0f7cc2c2517f099cea5d55fa7af3c.png)
A.![]() ![]() ![]() |
B.![]() ![]() |
C.![]() |
D.若![]() ![]() ![]() |
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2024高三·全国·专题练习
4 . 已知函数
恰有两个零点
.
(1)求实数
的取值范围;
(2)若函数
,求证:
在
上单调递减;
(3)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9041e48fb655996cfc996fceefefa0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cc74b04b18f5ed278420b45b53d7fb3.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0622e759d2c32552428b0bbf1411b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad2edd8edcb21bd41584daf9bb95a5c7.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be5bbb4e91c232d62cb331c02087ef6b.png)
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2024高三·全国·专题练习
5 . 已知
,函数
有两个零点,记为
,
.
(1)证明:
.
(2)对于
,若存在
,使得
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655c46b33730f3a29b9ec3024df71375.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17de16980dc347680c23b17153ef1232.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aba77b36579eeccb98cdc308ce92bc8.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc043d78e4c9ad2281754d6c1cac8791.png)
(2)对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eedf333393bdf56f8b428e9a7d2eb3de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7443588709e037203d0962bc5b3c705.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c403614594d401cf38ebc4d48c2f47f3.png)
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2024高三·全国·专题练习
解题方法
6 . 已知函数
有两个零点
,且有极小值点
,求证:
(1)
;
(2)
;
(3)
;
(4)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ef96ff936eb415b1f8fe6b9166d8e89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7db8f867196410e2828e2bbd3183b02d.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03ca13a93b5f401c0d39ba52b0cffcb0.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed3126c20aaa829be4091ce7f2931b83.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3628078fad0d12a8bb238314a6a8fb6e.png)
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2024·全国·模拟预测
7 . 已知函数
有两个极值点
,且
.
(1)求
的取值范围;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a294b62286b3c1f81d73f9d0da0bcba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a1e23283f24eeaf75d9b7b545f44327.png)
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2024高三下·全国·专题练习
名校
8 . 若定义在
上的奇函数
满足
,且当
时,
恒成立,则函数
的零点的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fceb969de98e32f56f9610c213823489.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d41bc187222393e7d41881755ac1a6a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0529e99b1f21a0ab9fa8af11e5cf3cfc.png)
A.1 | B.2 | C.3 | D.4 |
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2024高三·全国·专题练习
9 . 已知
有且仅有两个零点,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3209d297b7263a1c385195a9d2882690.png)
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2024高三·全国·专题练习
10 . 设函数
,
.
(1)若
是
的极值点,求a的值,并讨论
的单调性.
(2)已知函数
,若
在区间
内有零点,求a的取值范围.
(3)设
有两个极值点
,
,试讨论过两点
,
的直线能否过点
,若能,求a的值;若不能,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/238ef0a4a6c7fc61fa9115902d93a1dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1c6959bdfc9cb76091be6cf5b1d02f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.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/d27c0ab3e2d7698f082854bafe4174dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc47735cc385a3474bc1dabad322304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29343388ca8b33dc98325e65382b38a0.png)
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