名校
1 . 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)
您最近一年使用:0次
2024-06-11更新
|
414次组卷
|
3卷引用:四川省凉山州2024届高三第三次诊断性检测数学(理)试题
2 . 已知平面内动点
与两定点
,
连线的斜率之积为3.
(1)求动点
的轨迹
的方程:
(2)过点
的直线与轨迹
交于
,
两点,点
,
均在
轴右侧,且点
在第一象限,直线
与
交于点
,证明:点
横坐标为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22d07a71ea5e77168d101526bd081433.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12387f16bfc90abd7581d9f0f8d7a804.png)
(1)求动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8a0cc6504aa4c3a38006f5394b4c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b09b10f662479431978074c1a99f6b65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b7d857811cbd619f868d951aa7a0ab8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
解题方法
3 . 已知
为定义在R上且不恒为零的函数,若对
,都有
成立,则下列说法中正确的有( )个.
①
;
②若当
时,
,则函数
在
单调递增;
③对
,
;
④若
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f70e0db0174a2c05b28fb6d0c2508778.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86ec87e9730dbedf48cabae579c249f.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f579faac22a78b4740d7cf18879a6e11.png)
②若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab409bb25958c2f01c73e26042c6f51e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
③对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b78297a65e7fad69635b19928ecc10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/534f26ed8e5fffcdfdb171dae6e3a571.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d49692fecac2b7f491e434493fa12a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/233c9f0779f669214ac51679d7112061.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
解题方法
4 . 已知函数
.
(1)若函数
在R上是增函数,求a的取值范围;
(2)设
,若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a463ac0c7b7a38ba325ad39a5767f7a.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/916ee67551c5b0b50d6230135d03af41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c0db032844af4b5bdf879cd3fd0e599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7c709bd13fc1031868c1f8039728207.png)
您最近一年使用:0次
解题方法
5 . 古希腊数学家阿基米德用“逼近法”得到:椭圆面积的4倍除以圆周率等于椭圆的长轴长与短轴长的积.已知
是椭圆C:
的左焦点,且椭圆C的面积为
,离心率为
.
(1)求椭圆C的标准方程;
(2)设点
,
,以
为直径的圆与椭圆C在x轴上方交于M,N两点,求
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0407e1f5977d2cb46d362e8362c8816f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求椭圆C的标准方程;
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b5634528ca133fee203004bbc4789fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663b7a4133b2fdc04590c79f585d6eb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f80ecb6b5d5eca464b3f099513c08fc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bc12e9052d199030ec7047a78404673.png)
您最近一年使用:0次
6 . 已知点
是曲线
上任意一点,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65439ee6068fdc4f1ed1eb0e5dcfca1d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 已知函数
.
(1)讨论函数
的单调性;
(2)当
,若两个不相等的正数m,n,满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcf1dde10d1b084f0a2347bdb334693.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/628f504530e331211eff9b7838241db7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9947fdb8b6b390de995711ef15d82e70.png)
您最近一年使用:0次
解题方法
8 . 设函数
,若
,则a的最小值为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3897b59dafa25bc56d664525b3eba411.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
A.e | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-05-13更新
|
463次组卷
|
2卷引用:四川省凉山彝族自治州2023届高三第三次诊断性检测数学(文)试题
9 . 已知函数
.
(1)若
,求函数
的单调区间;
(2)当
,若两个不相等的正数m,n,满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcf1dde10d1b084f0a2347bdb334693.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/628f504530e331211eff9b7838241db7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9947fdb8b6b390de995711ef15d82e70.png)
您最近一年使用:0次
名校
10 . 已知函数
.
(1)当
时,求函数
的单调区间;
(2)若函数
有两个不同的极值点
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b5115ea6e6c480e15aa70264a318d8a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbf785616045d41f62917779d91d4976.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb29efe4a39f3135eec5af6fb0d7f46.png)
您最近一年使用:0次
2023-03-16更新
|
838次组卷
|
4卷引用:四川省凉山州2023届高三下学期二诊文科数学试题