名校
解题方法
1 . 设点
是直线
上的一个动点,
为坐标原点,过点
作
轴的垂线
.过点
作直线
的垂线交直线
于
.
(1)求点
的轨迹
的方程;
(2)过曲线
上的一点
(异于原点
)作曲线
的切线
交椭圆
于
,
两点,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefa44964db83759aff6fc8dd7ef8f28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过曲线
![](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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8430908541117b6223c428c2b95302f.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/866b81a8384cce4f24867baca2e6820c.png)
您最近一年使用:0次
2023-12-11更新
|
520次组卷
|
3卷引用:浙江省湖州市天略高中2021-2022学年高三上学期期末模拟数学试题
解题方法
2 . 在斜三棱柱
中,
是线段
的中点,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
A.存在直线![]() ![]() ![]() |
B.存在直线![]() ![]() ![]() |
C.存在直线![]() ![]() ![]() |
D.存在直线![]() ![]() ![]() |
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3 . 某校进行“七选三”选课,甲、乙两名学生都要从物理、化学、生物、政治、历史、地理和技术这7门课程中选择3门课程进行高考,假设他们对这7门课程都没有偏好,则他们所选课程中有2门课程相同的概率为( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
4 . 我们称
为“花式集合”,如果它满足如下三个条件:
(a)
;
(b)
的每个元素都是包含于
中的闭区间(元素可重复);
(c)对于任意实数
中包含
的元素个数不超过1011.
对于“花式集合”
和区间
,用
表示使得
的对
的数量.求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
(a)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4105c41b98ebc0e7144eff1ba792c76d.png)
(b)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
(c)对于任意实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb7bfa1a59b3451a4379f7cbc074ef60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
对于“花式集合”
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ebaa32f4f1f4f807ca9aeb7fb29951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4fc1c4dd7cb41e3342eb79054ef1a67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0e6ceed58d644f9027ea60bd0f1f557.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aeb55594a33f7ac1d8d93dc5b13cb82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd1ac9030ad24307666928b511a0f45e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0e6ceed58d644f9027ea60bd0f1f557.png)
您最近一年使用:0次
名校
5 . 如图,给定外心为
的锐角
,令
分别为
到对边的垂足.
为
的外接圆在
和
处的切线的交点.一条经过
且垂直于
的直线交直线
于
为
在
上的投影.证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80273dbcfcd2fda629a42d425ff25199.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e30c0a5c92f50dce1f7624709950ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.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/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ca00309261a540934d9b3ed9ba05b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95381ea2e4234a389f04150ff11660ef.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/73eec771-3787-4927-b668-78515fb9d732.png?resizew=198)
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6 . 甲、乙两人分别进行投硬币和掷图钉试验,每人各进行100次试验.设
为前k次试验中硬币正面向上的次数,
为前k次试验中图钉针尖朝下的次数,记
.
(1)若
,问是否存在常数P,不论试验过程中
如何变化,均存在某个
,使得
?若存在,求出所有P的可能值;若不存在,请说明理由;
(2)若
,问是否存在常数Q,不论试验过程中
如何变化,均存在某个
,使得
?若存在,求出所有Q的可能值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f255d0395fba51ca2d44293cca42e0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/233427826eb2233641fc3a9805f6d206.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/115e6f9387ea866bc7a9065bb256f855.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae727a3da730ebf0c3e2d6673d7fdb91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbe0f61ec213734b7ae080719fa5cdd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afe2b62374f95f9d569a6d5739dda128.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9f668c772ae36645251661e083ce7f8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98c5596c8546e9600062fea9f799f251.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9778f679a2495d92a52b36e5e86d4b31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afe2b62374f95f9d569a6d5739dda128.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6d82d629fe8d24b2d8a14a71a8bbf.png)
您最近一年使用:0次
7 . 设点
,过点F作斜率为k的直线l交椭圆
于C,D两点.
(1)记直线
的斜率分别为
.从下列①②③三个式子中任选其一,当k变化时,判断该式子是否为定值,若是,求出定值;若不是,请说明理由.
①
;②
;③
.
(2)当直线
分别交双曲线
的下支于P,Q两点(异于点B)时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20421239f70724807fc2e42f74b1f02d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f182db8ffa0d36588407eae8aeb7aa92.png)
(1)记直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5913ac8f576f9389802005ae712205d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c65902e35640cf2c8d4111c36b40145.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b881044b5c73db6fcce110525741b02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89c20aa9e89d8cc15be390051124ee5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0601dc0a83ff1c3b01dce7cdaa18cabb.png)
(2)当直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2013303974d530fce9a9930938f4c2b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aea802c49af59b44b8de07f6ef56d90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411e6e928c39bb54f031aa3e5d492852.png)
您最近一年使用:0次
8 . 已知
,集合
,记
,则集合A中的点组成图形的面积为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e97769855336d73371930df1f187875e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638d3b784f35369c85c1c1a00d502eff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03c3506e9bfc89ada8f426790cc5857d.png)
您最近一年使用:0次
9 . 在
的16个方格中填上实数,使得各行各列都成等差数列.若其中4个方格中所填的数如图所示,则图中打*号的方格填的数是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fb9d60d456560e9bac66c8b20c49bb1.png)
* | 13 | ||
13 | |||
13 | |||
39 |
您最近一年使用:0次
解题方法
10 . 设函数
的定义域为I,区间
,如果对于任意的常数
,都存在实数
,满足
,且
,那么称
是区间
上的“绝对差发散函数”.则下列函数是区间
上的“绝对差发散函数”的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/306621a2b3d220bbe34027c1aa503b28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2480f87a11c4cd450bc9454ea7276722.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe1c31a81f198c443e71b83ca662939.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbe1b0b3f9714e1f770d4ca0dca58649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85e86867a0285838dfe2401388d2900d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1242ec96ac54e2fd418988d5190a88.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次