名校
解题方法
1 . 已知椭圆
的右焦点和上顶点分别为点
和点A,直线
交椭圆于P,Q两点,若F恰好为
的重心,则椭圆的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a442ddf58f14997eeb471a80d7959019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3323aea3d92d8c487d6967ac38e58db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-03-06更新
|
1108次组卷
|
4卷引用:浙江省杭州学军中学紫金港校区2023-2024学年高二上学期期中数学试题
名校
2 . 已知函数
,若关于
的方程
有5个不同的实根,则实数
的取值可以为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed851a4f59efd817d448aac52704697.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/957dec827318782ae3e0184a47a1dca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
3 . 在正四面体
中,
分别为
和
的中点,则异面直线
与
所成角的余弦值______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4278c0911e7df78965e78cff69cac5f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94165c5047e68e952df7a8dc6dc32fda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167d31eb8432b5c0364316e5048c23dd.png)
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解题方法
4 . 已知正方体
棱长为2,P为空间中一点.下列论述错误的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/14/ba338d41-1398-4e4d-8c60-439616c4e6a9.png?resizew=165)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/14/ba338d41-1398-4e4d-8c60-439616c4e6a9.png?resizew=165)
A.若![]() ![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
5 . 已知函数
,其中常数
.
(1)若函数
分别在区间
,
上单调,求
的取值范围;
(2)当
时,是否存在实数
和
,使得函数
在区间
上单调,且此时
的取值范围是
.若存在,求出
的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea96d9c85876681749d9091d2f82fa8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fff6e7e2b9f2b68b1647f6350b98dc8.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/189b2da6c420bf8f8900002d14f65f72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2a51944c720568f35d443589dfc1aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad8af7bed124f00c8e19b52d028b4d90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2024-01-29更新
|
173次组卷
|
2卷引用:浙江省杭州第二中学2023-2024学年高一上学期期中考试数学试题
名校
6 . 著名数学家华罗庚曾说过“数缺形时少直观,形少数时难入微”,事实上,很多代数问题都可以转化为几何问题加以解决,如:对于形如
的代数式,可以转化为平面上点
与
的距离加以考虑.结合综上观点,对于函数
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a591d79a74b659bc31d9d8d3c110179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d259822ab64b8626f3893b8432673358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c6134983a8decef61d715c3eedb9f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1485de2f431884978487abce27ae2c81.png)
A.![]() | B.![]() ![]() |
C.![]() | D.方程![]() |
您最近一年使用:0次
2024-01-29更新
|
159次组卷
|
2卷引用:浙江省杭州第二中学2023-2024学年高一上学期期中考试数学试题
名校
7 . 已知函数
,记集合
,
,若
,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff89e1b2a00ef707ce48feba1ab419e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76d5c23f0d6d358e48dc9bed91b07f63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fcd34b4fe3fad45fb9f00030ba18a26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79d02e5de0c92487382f4b98376e9740.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2024-01-29更新
|
249次组卷
|
3卷引用:浙江省杭州第二中学2023-2024学年高一上学期期中考试数学试题
8 . 椭圆
:
的右焦点是
,且经过点
;直线
与椭圆
交于
,
两点,以
为直径的圆过原点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/15/a0c8de6a-87c3-4d6b-ba75-15441cedc597.png?resizew=168)
(1)求椭圆
的方程;
(2)当直线AB的斜率为2时,求AB的长度;
(3)若过原点的直线
与椭圆
交于
,
两点,且
,求四边形
面积的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/347b68f42934c74e0d759a67613a1da9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcff4d18e7de14c67260bb44aabb3315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eacbf21e62770e616be5bdf6a2df4c3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/15/a0c8de6a-87c3-4d6b-ba75-15441cedc597.png?resizew=168)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)当直线AB的斜率为2时,求AB的长度;
(3)若过原点的直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6742c3b6b534a079f7fc6b7583cb73a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c593ebdb2f1934a0cb56f8c44f454f8.png)
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2024-01-24更新
|
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|
2卷引用:浙江省杭州市富阳区江南中学2023-2024学年高二上学期12月月考数学试卷
9 . 在
中,
,
.若空间点
满足
,则直线
与平面
所成角的正切的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09cf17ee13e937cd8b84879da17d15b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4acb67ef5fdc27bea83a0d5df35747c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7405226cb43a9a109a969e8c88a1fe13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4819c39c281427826e1b3f7a4c2b720.png)
您最近一年使用:0次
2024-01-24更新
|
167次组卷
|
2卷引用:浙江省杭州市富阳区江南中学2023-2024学年高二上学期12月月考数学试卷
名校
解题方法
10 . 已知函数
,若关于x的方程
有4个实数解
,且
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8df36591aa37a1797202ea979694d35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/976d18a5396ba232f0aa38d136f1d749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8ccd22fd0ca1a8e1468329284f91b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3604274ad6707a906eba371a9e884144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd0e2d75b5268cda6f82aeb10a70d970.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次