名校
解题方法
1 . 已知抛物线
的焦点为
,准线为
,
是
上除坐标原点
以外的动点,过点
且与
相切的直线
与
轴交于点
,与
轴交于点
,
,垂足为
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ceb7c718db30bba691fd75385a91ee97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e13b505788d3d02bf232ac637fc3a8ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
A.![]() | B.若点![]() ![]() ![]() |
C.四边形![]() | D.![]() ![]() ![]() |
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2024-01-27更新
|
390次组卷
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2卷引用:重庆市南开中学校2023-2024学年高二下学期阶段测试数学试题
名校
2 . 在数列
中,
(
,
为非零常数),则称
为“等方差数列”,
称为“公方差”,下列对“等方差数列”的判断正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44818d415cf4e4af51151193e204bdd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e988e0b43c5730e1c104004514801d9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
A.![]() |
B.若正项等方差数列![]() ![]() ![]() ![]() |
C.等比数列不可能为等方差数列 |
D.存在数列![]() |
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2023-05-30更新
|
620次组卷
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2卷引用:重庆市第八中学2023届高三下学期全真模拟数学试题
3 . 在平面直角坐标系xOy中,A为坐标原点,
,点列P在圆
上,若对于
,存在数列
,
,使得
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c850811ba59a05e945a665196539a048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b5c05d438fd55358a2642e62da8e1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f8365233f341451598eb50525a1557a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ecf69901899bba130968c7a091790d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e416f0b8dcf6a2cfae7152ecff10f03.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() |
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2023-02-23更新
|
857次组卷
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4卷引用:重庆市2023届高三下学期3月月度质量检测数学试题
重庆市2023届高三下学期3月月度质量检测数学试题2023年普通高等学校招生全国统一考试数学模拟演练(二)(已下线)重难点突破01 数列的综合应用 (十三大题型)-2(已下线)专题05 数列在高中数学其他模块的应用(九大题型+过关检测专训)-2023-2024学年高二数学《重难点题型·高分突破》(人教A版2019选择性必修第二册)
解题方法
4 . 已知双曲线
,A、
分别为双曲线的左,右顶点,
、
为左、右焦点,
,且
,
,
成等比数列,点
是双曲线
的右支上异于点
的任意一点,记
,
的斜率分别为
,
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b2d4ff799e2f87b3786a04c83f63d5d.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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
A.双曲线的离心率为![]() |
B.当![]() ![]() |
C.![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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名校
5 . 以下叙述不正确的是( )
A.若等比数列{![]() ![]() |
B.等比数列{![]() ![]() ![]() |
C.等差数列{![]() ![]() ![]() |
D.公差为负的等差数列{![]() ![]() ![]() |
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2022-03-20更新
|
636次组卷
|
2卷引用:重庆市第一中学2022届高三下学期3月月考数学试题
名校
解题方法
6 . 定义离心率为
的椭圆为“黄金椭圆”,已知椭圆
(
)的左、右焦点分别为
、
,左、右顶点分别为
、
,上、下顶点分别为
、
.则下列条件中,能使椭圆C是“黄金椭圆”的为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/029d393bb07b7140905b85f550519de4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
A.![]() ![]() ![]() | B.![]() ![]() ![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
7 . 已知
为等差数列
的前
项和,且
,
,则下列结论正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/087d10909ae373f63c33cf96f6b00c76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5860e309954e00865b3cc38bc3cac8b0.png)
A.![]() | B.![]() |
C.![]() ![]() ![]() | D.![]() ![]() |
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2022-02-09更新
|
572次组卷
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2卷引用:重庆市第八中学校2021-2022学年高二艺术班上学期期末数学试题
名校
8 . 已知
为等差数列
的前
项和,且
,
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/738dc67ac3b150252a964d1ffe3dfa63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8657a9f3eec0c1b0efa818f778129e4.png)
A.![]() | B.![]() |
C.![]() ![]() ![]() | D.![]() ![]() |
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2021-11-29更新
|
1367次组卷
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9卷引用:重庆南开(融侨)中学2022-2023学年高二上学期线上教学检测数学试题
解题方法
9 . 已知
的内角A,B,C的对边长a,b,c成等比数列,
,延长BA至
则下面结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d8dcbd27e4b6086caae8a8fe5b8fce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecbc29a42d7593967f182639a76503c6.png)
A.![]() | B.![]() |
C.若![]() ![]() ![]() | D.若![]() ![]() ![]() |
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2021-09-27更新
|
437次组卷
|
3卷引用:重庆市缙云教育联盟2021-2022学年高一上学期9月月度质量检测数学试题
重庆市缙云教育联盟2021-2022学年高一上学期9月月度质量检测数学试题(已下线)专题29 数列结合其他问题考查更精彩-备战2022年高考数学一轮复习一网打尽之重点难点突破专题2.6 解三角形中的最值与范围问题-2021-2022学年高一数学北师大版2019必修第二册
名校
10 . 等比数列
的公比为
,且满足
,
,
.记
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8141d87fb02b08c88b0c9f27f839a7d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64ab07eddc3bc9fa372c9e90a1581eb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f13cfa40812338d488e5cf64ce9b1b5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd2a777ca80aba17b6dd45805665540.png)
A.![]() |
B.![]() |
C.![]() |
D.使![]() ![]() ![]() |
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