名校
解题方法
1 . 设抛物线C:
(
),直线l:
交C于A,B两点.过原点O作l的垂线,交直线
于点M.对任意
,直线AM,AB,BM的斜率成等差数列.
(1)求C的方程;
(2)若直线
,且
与C相切于点N,证明:
的面积不小于
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b35f0b940c8422ef47edc3b7ce55e47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5abd313d4e92a762fb7fb0c1cb65263d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02ebce8b2a915356ed39f36c5bad2ebe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d0aa9412dd7caf42cc71520e282328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aff8d9b6533ff319420cdc5e8740b04.png)
(1)求C的方程;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc05c94ee6367e5551b219ac3168865.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98013a5042685a1db94249e70c62c09a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
您最近一年使用:0次
2024-05-26更新
|
3017次组卷
|
5卷引用:安徽省六安第一中学2023-2024学年高三下学期期末质量检测卷(二)数学试题
安徽省六安第一中学2023-2024学年高三下学期期末质量检测卷(二)数学试题2024届广东省深圳市二模数学试题(已下线)第30题 几何分析曲径通幽,代数推演水到渠成(优质好题一题多解)(已下线)易错点8 圆锥曲线问题中未讨论直线斜率的特殊情况江西省南昌市八一中学2024届高三下学期三模测试数学试题
解题方法
2 . 在平面直角坐标系xOy中,抛物线
:
的焦点为F,点
,
,
在抛物线
上,直线
,
,
的斜率分别为
,
,
.
(1)若F为
的重心,求证:
为定值;
(2)若F为
的垂心,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797e67927616b141ed7c6b83f8b6f4fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4a949c00526fddf435423272cf10f25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fee51946da54ce4130fefa5e488589d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63db584e8a0ebf326135cfab3d7f25ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf434334b09cc0fdd4e86e84e6ceb00.png)
(1)若F为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97ac2dd55fa98f9bf10fcd95ce3169c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a03faf836bc7afb7bf0f04ba293ff9f.png)
(2)若F为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97ac2dd55fa98f9bf10fcd95ce3169c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a03faf836bc7afb7bf0f04ba293ff9f.png)
您最近一年使用:0次
名校
3 . 我们把方程
的实数解称为欧米加常数,记为
.
和
一样,都是无理数,
还被称为在指数函数中的“黄金比例”.下列有关
的结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09c9c4849920f9b5d6be15d5e73e33b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0047f659c182291c84c224df6b5e993f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0047f659c182291c84c224df6b5e993f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0047f659c182291c84c224df6b5e993f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0047f659c182291c84c224df6b5e993f.png)
A.![]() |
B.![]() |
C.![]() ![]() |
D.函数![]() ![]() |
您最近一年使用:0次
名校
解题方法
4 . 已知
,
,
分别是
的三个内角
,
,
的对边,其中正确的命题有( )
![](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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/c5db41a1f31d6baee7c69990811edb9f.png)
A.已知![]() ![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
D.已知![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
解题方法
5 . 现有甲、乙两个不透明盒子,都装有1个红球和1个白球,这些球的大小、形状、质地完全相同.
(1)若从甲、乙两个盒子中各任取一个球交换放入另一个盒子中,
次这样的操作后,记甲盒子中红球的个数为
.求
的分布列与数学期望;
(2)现从甲中有放回的抽取
次,每次抽取1球,若抽取次数不超过
次的情况下,抽取到2次红球,则停止抽取,一直抽取不到2次红球,第
次抽取完也停止抽取,令抽取停止时,抽取的次数为
,求
的数学期望
,并证明:
.
(1)若从甲、乙两个盒子中各任取一个球交换放入另一个盒子中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6368fec0c2c25db7c29b014d60270e97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93d0f3799612b81e85b87241ec8eee68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/096b1ece1dcd29c59a46a4b3e02cb548.png)
(2)现从甲中有放回的抽取
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8715a3f984d2627afd7c40c61347b7cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bedb7b3610d86273097614a9b3b6078.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a829fdd8ec0f3b7ede883cf2c3e53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71701db4b413f2364dbcbd612fbc8a67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eda9982a3b268dc3904eb16e1b89f9d.png)
您最近一年使用:0次
解题方法
6 . 直线
与双曲线
的左、右两支分别交于
两点,与
的两条渐近线分别交于
两点,
从左到右依次排列,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b4a83da13cbff23132c2a521816b23c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c29a7e8eea08197bf53164a560bee58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aca012edb70957a7a108d42832c5a4f.png)
A.线段![]() ![]() | B.![]() |
C.线段![]() | D.线段![]() |
您最近一年使用:0次
7 . 若项数均为
的两个数列
满足
,且集合
,则称数列
是一对“
项紧密数列”.设数列
是一对“4项紧密数列”,则这样的“4项紧密数列”有( )对.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5432a8b1081ecb4a8c4943faad484541.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e567d7e9761951a266953c8d5042ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54946204c502727ffaee3c0172d195a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1f11437ef2c39a14cffb0d36c8d9c36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e567d7e9761951a266953c8d5042ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e567d7e9761951a266953c8d5042ac.png)
A.5 | B.6 | C.7 | D.8 |
您最近一年使用:0次
8 . 已知S是全体复数集
的一个非空子集,如果
,总有
,则称S是数环.设
是数环,如果①
内含有一个非零复数;②
且
,有
,则称
是数域.由定义知有理数集
是数域.
(1)求元素个数最小的数环
;
(2)证明:记
,证明:
是数域;
(3)若
是数域,判断
是否是数域,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9862bd95f5984d277bffec774aaf04eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4034552829008c1daaee2701d2afe8dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/add287d65098cf6afc04da8d55c8e2a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfb0cbda87a5e26ceb063d749533eb58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c412d5329ba909164329663b7eecdfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba4c4892e431f6bd8f9dfb7b593653b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316ecb1589c3cc179e2f62507020771e.png)
(1)求元素个数最小的数环
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4defd79134fced9d2beaba395d4994dd.png)
(2)证明:记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b23f5d67f2aed1d240a62c192fe97f62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ca8142445fb86f9404c814a8067db48.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24cfa8cb6d43bc7fbec75c27b6285fff.png)
您最近一年使用:0次
解题方法
9 . 如图所示,平面直角坐标系
中,
为坐标原点,四边形
为矩形,
,
分别为
的中点,
两点满足:
,其中
为非零实数.直线
与
交于点
.已知椭圆
过
三点.
的标准方程及其焦距;
(2)判断点
与椭圆
的位置关系,并证明你的结论;
(3)设
为椭圆
上两点,满足
,判断
是否为定值,如果是,求出该定值;如果不是,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a5593aaed5bed99df2304bd912621db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c664dcdcf88a834707b415061bed5dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe5f119646a92ac8a2a0142f2d16c4af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9db1bd0b579fa83ec274f5fb55334b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a373959bb9026f8a09845c0b828bf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef8d98208f21d4228e38666de7cdfb84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c118b51ab426bc1c1b56179094f146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce7af7c5df749c6fa9bbe87faa72c66d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
(2)判断点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48a66dbf27b528f58a97cfa8bc6fdff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bbca6601542ba9e8b4751d157c89f6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3876c2708b4ae96dca3aab871fdc159.png)
您最近一年使用:0次
名校
解题方法
10 . 若实数集
对
,均有
,则称
具有Bernoulli型关系.
(1)若集合
,判断
是否具有Bernoulli型关系,并说明理由;
(2)设集合
,若
具有Bernoulli型关系,求非负实数
的取值范围;
(3)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2df79c96894e48585d810e2d1180b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de62c03953e609ea331280b1e27ba701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42acae4bf2a6bead9d904b70d0480fc0.png)
(1)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5055c43ef4c493c056609f617f38e108.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef4609431a6fc9f2755d8e8ca6617b0.png)
(2)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9d408eb7f234bea73e86bff6a453f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5596a9fe31bffbe73af20f611a9a574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/953916e76840b10bf27302f42ad98cb9.png)
您最近一年使用:0次
2024-05-12更新
|
1028次组卷
|
3卷引用:安徽省六安第一中学2023-2024学年高三下学期期末质量检测卷(二)数学试题