名校
1 . 已知
,若函数
有两个不同的零点,则a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a093f66705f95dc75bcb89e00ac8258.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 已知
,
,
,其中
为自然对数的底数,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b9bca4d139a4208eb8b44e5d45349b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab51557235420e08be0a2f6ff185e4e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4704f3e7f21881f26d897494272d8f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11204e2fb6e560bf7a4ca26eaebfc526.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7日内更新
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730次组卷
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2卷引用:江西省宜春市第一中学2024届高三下学期第三次模拟考试数学试卷
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3 . 已知
,且
,若函数
在
上单调递减,则a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdd56fff15ef55b3963a5f80aac52ff0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e1c9c97de9198d47306216e9961b80.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-06-12更新
|
450次组卷
|
2卷引用:江西省宜春市第一中学2024届高三下学期第三次模拟考试数学试卷
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4 . 已知函数
的零点为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0be0c6f8ade9545b03b7569feb46d582.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f817ccd47343fd6d4d1da3b71e39cd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0be0c6f8ade9545b03b7569feb46d582.png)
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2024-06-11更新
|
398次组卷
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3卷引用:江西省宜丰中学2024届高三下学期模拟预测数学试卷
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5 . 函数
,若关于
的不等式
有且仅有三个整数解,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/728f2cc68f8ca8ef2faa681785798259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d270fb22500871618da3bc462426d4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-06-11更新
|
691次组卷
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6 . 已知函数
,
(1)讨论函数
的单调性;
(2)若
,证明:对任意
,存在唯一实数
,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/125fd2a988cc502082411277f3f1d7f8.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d41acc47493556617fe7b9e55093d10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9fef90e594e8de68a34a1e6441c941f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d701701514d29d22d56e8a35f797d267.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab6743446adfe0dce4e9e8844e0d81c3.png)
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2024-06-07更新
|
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7 . 已知函数
的定义域为
,且
,对任意
,
,则不等式
的解集是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8ae637ab2db7442c4fafb163c992e38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b14c0ebb3db2736efbd02dba419a685.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6219050159b34273188d004903cc7d1f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
8 . 已知函数
,若
在其定义域上没有零点,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/420e47c40f2d24c32db4c591cff43818.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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9 . 已知函数
,且曲线
在点
处的切线方程为
.
(1)求
的值;
(2)求
的单调区间与最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31a27bfeaeadeaa28e7ff9b3a1a1db6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ea9824af71c9da5db5a00ec06063024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bc72f893adc42d9b0fb226b6be391a3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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解题方法
10 . 已知曲线
在点
处的切线方程为
.
(1)求a,b的值;
(2)求
的单调区间;
(3)已知
,且
,证明:对任意的
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a274b0623171972513340511781ccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f2e4560759a110e4ccc334e3ccea7e4.png)
(1)求a,b的值;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b9c008f8fcc8edcd68fb14e0727fa49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bccf433ec08ad06d0e8a7eb53f5143ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/734a6de235c7c5205eb3d81109f04abf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e176b379350d3bbdbb923c2e8435f011.png)
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