1 . 已知函数
.
(1)若
是函数
的极值点,求
;
(2)函数
恰有一个零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86c58072c1505fa97f65d909be56e260.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef00713e73b8357cc7900144f5505bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2 . 设函数
.
(1)求
的单调区间;
(2)设
为
极小值点,且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b9e1cf9fca5dc0a5abfb5f57a7fee9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcba17553426851299fac21a2ffab156.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42ea9eea2767b27a9e04d6640ac27ad6.png)
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3 .
是神经网络中重要的激活函数,又称Sigmoid函数.则下列对该函数图象和情质的描述中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecde12edca0ade95e8d0aab1c64f8087.png)
A.![]() ![]() |
B.![]() |
C.![]() ![]() |
D.![]() ![]() ![]() |
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解题方法
4 . 已知函数
.
(1)求曲线
在
处的切线
并比较
与
的大小关系;
(2)记函数
的极大值点为
,已知
表示不超过
的最大整数,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/386a1b2693134b99b0b33892ffb124f4.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)记函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e050543dae8a2451c2d34913a22fb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7054b4cdb50f283d6db90ab1a7ad877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bd6a7d4e9110e95d88e8fdea3c03744.png)
您最近一年使用:0次
2023-12-29更新
|
365次组卷
|
4卷引用:四川省德阳市2024届高三一模数学(文)试题
解题方法
5 . 已知点
在曲线
上,那么
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bbd2ddb2d2a0fc5db95cb18eb1220a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d74e1acf8281d825937c374a37920454.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 已知
,
,
,则
的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dd82b5223c2a708c1729db2a3750990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bed52e4f78f714195f4055702e27db9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96c4c90005dcf4a33bf9a615a131432a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2023-12-14更新
|
282次组卷
|
2卷引用:四川省德阳市第五中学2023-2024学年高三上学期12月月考文科数学试题
名校
解题方法
7 . 已知函数
在点
处的切线与
轴平行.
(1)求实数
的值及
的极值;
(2)若对任意的
,都有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5dec7df5d3c558651b7e5d0a7ba8f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e40b4d536a5dfacefc27d08b2279dfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d09086cc48a07099c78d564f5814130.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2023-12-12更新
|
274次组卷
|
2卷引用:四川省德阳市第五中学2023-2024学年高三上学期12月月考文科数学试题
名校
解题方法
8 . 已知椭圆
的左焦点
,若点
位于
轴上方且在椭圆
上,直线
垂直于直线
于点
,
,则椭圆
的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb60dd65c10abde3ba0e4a60132d34d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e295a6dda29711a535d0007911b8e752.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
9 . 使得“函数
在区间
上单调递增”成立的一个充分不必要条件可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb5822808f372824ac551effb74e15e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3654254401fc902c3cb4912969f21f88.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-12-12更新
|
285次组卷
|
3卷引用:四川省德阳市第五中学2023-2024学年高三上学期12月月考文科数学试题
四川省德阳市第五中学2023-2024学年高三上学期12月月考文科数学试题四川省德阳市第五中学2024届高三上学期12月月考数学(理)试题(已下线)考点4 条件的判断 --2024届高考数学考点总动员【练】
名校
解题方法
10 . 已知双曲线
,
是两个焦点,
为原点,
是双曲线右支上一点,
,则
=______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c58fa4a337f0b81b991fb32e8e6e3c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d08de7d14f041823d5d5e02810a8f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/186b089ab7f74d2b92ee9b556e5e3ca8.png)
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