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
|
401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
4 . 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
5 . 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
6 . 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
解题方法
7 . 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
名校
8 . 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
2023·四川凉山·一模
解题方法
9 . 已知函数
.
(1)求
的最小值;
(2)已知
,证明:
;
(3)若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a1ff2cd867cbe33540006e2e9d68f1c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c0ef5a0f806510d2d74492a44dbc721.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ada9bca410faf7d18b3e060a390a0166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023·四川凉山·一模
解题方法
10 . 已知函数
.
(1)
是
的导函数,求
的最小值;
(2)已知
,证明:
;
(3)若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b97f8f222f9665ea94b6113c2a194c9b.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c0ef5a0f806510d2d74492a44dbc721.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adab2cb8ac15e02a8a06ae42fe800b62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次