名校
解题方法
1 . 已知函数
.
(1)当
时,求
在
的切线方程;
(2)若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e70f2cbcf8bcb60c75e1779fc2b7d6.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6711f624336a86026873ac5616ac72c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
2 . 已知函数
与
有两个不同的交点,交点坐标分别为
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/590a7d430703d2d41a0171ff6a97dac5.png)
,下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7029bd8089800bab0111238b4ed8b38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46111e4d12c21798aa213c0d7804c2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2693f047cefe8477d055076b0fb25a03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/590a7d430703d2d41a0171ff6a97dac5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af029e933ded38d74c2a9d283e3b92d3.png)
A.![]() ![]() ![]() |
B.![]() ![]() |
C.![]() |
D.![]() |
您最近一年使用:0次
2024-01-11更新
|
338次组卷
|
3卷引用:湖北省武汉市东湖中学2023-2024学年高二上学期期中考试数学试题
名校
解题方法
3 . 如图,已知椭圆
,其焦距为4,过椭圆长轴上一动点
作直线交椭圆于
、
,直线
、
交于点
,已知
,则椭圆的离心率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/347b68f42934c74e0d759a67613a1da9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715abe79425e4e4f2a35fdd745ba653b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/468fc3e395fa3b681c3da37edbe229a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25ec7f5d958d54f9642eecec56e7540.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/14/f78746a7-c640-4a95-b14e-790feb628e1b.png?resizew=189)
您最近一年使用:0次
2024-01-11更新
|
286次组卷
|
2卷引用:湖北省武汉市东湖中学2023-2024学年高二上学期期中考试数学试题
名校
解题方法
4 . 如图,已知椭圆
,长轴长为6,离心率为
,过椭圆右焦点
作斜率不为0的直线交椭圆于
、
,过
作
垂直于直线
,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/14/1285412a-c035-447c-87e4-817d66631e39.png?resizew=186)
(1)求椭圆的标准方程;
(2)证明:直线
过定点,并求出定点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090c0ba4cadbd85bf1f04f0d962eb16a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b15febfda66e733f14aa7115ed4343a8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/14/1285412a-c035-447c-87e4-817d66631e39.png?resizew=186)
(1)求椭圆的标准方程;
(2)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3d566704b44ea4ef1f99c37bd46902.png)
您最近一年使用:0次
2024-01-11更新
|
518次组卷
|
2卷引用:湖北省武汉市东湖中学2023-2024学年高二上学期期中考试数学试题
名校
解题方法
5 . 已知椭圆
,其上顶点为
;
(1)若直线
与椭圆
交于
、
两点,求证:
为定值;
(2)由椭圆
上不同三点构成的三角形称为椭圆的内接三角形,现以
为直角顶点作椭圆
的内接等腰直角三角形,求内接等腰直角三角形的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb4402aeb853b22f20992156957ef0fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667ac0afa44e3cbba0b90ce891c6a9be.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5f6c5fd93aed88bec58002a20ea2e90.png)
(2)由椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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6 . 已知双曲线
:
的左、右焦点分别为
,
,过点
的直线
与双曲线
的左支交于点
,与双曲线
的一条渐近线在第一象限交于点
,且
(
为坐标原点).下列三个结论正确的是( )
①
的坐标为
;②
;③若
,则双曲线
的离心率
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5076829e649b3f3866d4a7e07a5713e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697c20fca284394bf5d5b9e5f6d952e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ff7a1037eb6722eda89b96d7ad95c64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f51268980423c80194910c03859c1ba6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52dd309625682a9e2bea8a8d3068faaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bda94b3b7c2f1cfede83728a9dbb7dfe.png)
A.①② | B.②③ | C.①③ | D.①②③ |
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7 . 已知函数
,则下列命题正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcf83efd34b7c7ac8a5b4682d78d0ee5.png)
A.![]() ![]() |
B.方程![]() ![]() ![]() |
C.![]() ![]() |
D.若![]() ![]() ![]() |
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8 . 小明同学喜欢玩折纸游戏,经常对折纸中的一些数学问题进行探究.已知一矩形纸片
其中
的周长为
他把
沿AC向
折叠,AB折过去后交DC于点
他在思索一个问题:如果改变AB的长度
周长保持不变
,
的面积是否存在最大值?请帮他确定
的面积是否存在最大值?若存在,求出其最大值并指出相应的AB的长度;若不存在,试说明理由?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c4d2587a1a841ac903ebcaf060dda14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d726003a46612fa46667b7cf9cf79766.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3020af41b4c0b4aefc08f68151f54b37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e75fb6f9ad72dea327a6895915cd5355.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c03b78aea3e4122a1416d5ca6a4ffc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ad76cea565f95292dcdfd6b8dc0e73a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ad76cea565f95292dcdfd6b8dc0e73a.png)
您最近一年使用:0次
名校
解题方法
9 . 已知函数
,
.
(1)当
时,求
的单调区间;
(2)如果关于
的方程
有三个不相等的非零实数解
,
,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1277e63529a8e6fa261660474741ece.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1a1a5f2533b8ea54b7022383f875666.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)如果关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52079d948ae0e1f1d112b3ac76142f1a.png)
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10 . 已知在平面直角坐标系
中,
,
,动点
是平面上动点,其轨迹为
.则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843e3f8c3314d51a322c6122a13745c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c477662c046daefe58026249658b6d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.若动点![]() ![]() ![]() ![]() |
B.若动点![]() ![]() ![]() ![]() ![]() |
C.若动点![]() ![]() ![]() ![]() |
D.若动点![]() ![]() ![]() |
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