1 . 已知函数
.
(1)讨论函数
的单调性;
(2)设函数
,证明:当
时,函数
在
上只有1个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6d65f4a5a0d2e58a8b07e9166c98bce.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00517f5242f24ae4b4af8380498d79c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d4f9ad9642818acf963146f24576303.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db1d399a05d9f7ec9c19a8564f7b6d8f.png)
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2 . 已知椭圆:
的左焦点为
,离心率为
为椭圆上关于
轴对称的两点,
,若
,则椭圆方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6873565d80d8af1ad0cc736096664daa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/545553ecc074a6135b75c65617aabde7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589760dbd8a79e3915da0ee98df41469.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 三个数
的大小顺序为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29b2224e8f414f1aa150ea7b624432d3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
4 . 已知双曲线C:
的左、右焦点分别为
,
,
为原点,若以
为直径的圆与
的渐近线的一个交点为
,且
,则
的离心率为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf120a1c13adc971ba3642b33e9867d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cdfc6a59392d1ac3cd89ddc0308864c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0d08a832eacf576430dc50a8f9e3875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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5 . 设函数
,则“
”是“
在
上单调递增”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36db901c68dcf6a1b32bb6a7ddb6e795.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd14739eeaf152b1ab9de71444703406.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b2c85597ea3772df8816975f803efd9.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充分必要条件 | D.既不充分也不必要条件 |
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|
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2卷引用:四川省成都市第七中学2024届高三下学期热身考试数学(理)试卷
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6 . 已知函数
,则
在( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20621ea38bfb478a2d371d56210a3ae5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
7 . 双曲线
的两个焦点为
、
,对称中心为O,在
的一条渐近线上取一点M,使得
等于C的半实轴长,当
的最小角取最大值时,
的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0c19fa4cd646f4d877c3e58cc346651.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b42fc33bcfc63ec2f4940ccd3f862400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.2 | D.![]() |
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解题方法
8 . 已知函数
,则不等式
的解集为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e16eaf154c6eb78e4c1b19e6aa1f0fc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ad269224cb110b03a9b62b090b4d10.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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9 . 已知函数
,
,若
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09abd912fe60090ed5a9eead179680a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa1c68cebf2203d277f61cfdbacf175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63bbadc6250f7139836ede33205550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b082ca1e0972322e5312645003cb92d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
10 . 设点
,动点P在抛物线
上,记P到直线
的距离为d,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1e95fb519f59c46f40e4ab44660073.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2fab5479e200ccbf0e0d33b7625f4de.png)
A.1 | B.3 | C.![]() | D.![]() |
您最近一年使用:0次
7日内更新
|
49次组卷
|
2卷引用:四川省成都市第七中学2024届高三下学期热身考试数学(文)试卷