解题方法
1 . 2024年4月30日17时46分,神舟十七号返回舱成功着陆,返回舱是宇航员返回地球的座舱.返回舱的轴截面可近似看作是由半个椭圆 和一段圆弧 组成的“果圆”.如图,在平面直角坐标系中,某“果圆”中圆弧经过椭圆的一个焦点
和短轴的两个顶点
与
.
(2)直线
交该“果圆”于A、B两点,求弦AB的长度(精确到0.01).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad7345600383230ab4325bd6310813f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c0573e2af8a0dc8c6a1c0af067a324f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ee8c50793afd59e6ab4a2be5a877759.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
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解题方法
2 . 已知双曲线
的图像经过点
,点
分别是双曲线
的左顶点和右焦点.设过
的直线
交
的右支于
两点,其中点
在第一象限.
的标准方程;
(2)若直线
分别交直线
于
两点,证明:
为定值;
(3)是否存在常数
,使得
恒成立?若存在,求出
的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32bd59dc2cf63dbd2be894e6131604da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271057b8074eaee352dad52d3a12543c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7d5a99dfaec60d88ad496c1fd184fcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.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/a5b1b15a4605fce993cb13aefbf40360.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53d223a09481973825c5e87ce2f5c03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b650820d7bed48ed67a2869ad8c65ff1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f99cc82a7536f92bff713a918415e9.png)
(3)是否存在常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bfe8d34e91e1e98891527ad92a33887.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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3 . 在棱长为1的正方体
中,若点P是棱上一点,则满足
的点P的个数为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce6eda9f298400a2f3beb01e935238ea.png)
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解题方法
4 . 已知
中,
,
,
,则以A、B为焦点,经过点C的椭圆的离心率为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae8221601c7bd5c51fd520615581fa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ad4c0ba3a6750537789844d0ec419d.png)
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5 . 若无穷数列
满足:存在正整数
,使得
对一切正整数
成立,则称
是周期为
的周期数列.
(1)若
(其中正整数m为常数,
),判断数列
是否为周期数列,并说明理由;
(2)若
,判断数列
是否为周期数列,并说明理由;
(3)设
是无穷数列,已知
.求证:“存在
,使得
是周期数列”的充要条件是“
是周期数列”.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b2b94cbf8f1acc77ed2618d9ba5756a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f195d5a5663e0b1b0870c3f2c39d19dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cff7a7deafe061d63e324c12867f958.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62b8edc8e215753c36badd65adaee992.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bc6bb7b937ded40f6f50859d8f77a5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
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解题方法
6 . 已知双曲线
,
,
分别为其左、右焦点.
,
的坐标和双曲线
的渐近线方程;
(2)如图,
是双曲线
右支在第一象限内一点,圆
是△
的内切圆,设圆与
,
,
分别切于点
,
,
,当圆
的面积为
时,求直线
的斜率;
(3)是否存在过点
的直线
与双曲线
的左右两支分别交于
,
两点,且使得
,若存在,求出直线
的方程;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a67d334f7926abd3ec6782534c5dab9d.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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(2)如图,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd5a8e1bc9748e5519dcd9981b7eb251.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643ef7d761de0e794fc39937dc72ac6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20b3a91ccf6028608cd03df7072f6536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
(3)是否存在过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/d981eca505f4e7cb144e24803f5cb88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2024-04-11更新
|
596次组卷
|
2卷引用:上海市青浦区2024届高三下学期4月学业质量调研数学试卷
7 . 已知椭圆
的长轴长为
,且过点
.记椭圆的左右焦点分别为
,
,过点
的直线l交椭圆C于不同的两点P、Q.
(1)求椭圆的标准方程;
(2)若以线段PQ为直径的圆过点
,求直线l的方程;
(3)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe8530b8e246a9a5ec9fe3b9c347d5a.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/40630a669f4eedf626bc24851df10c85.png)
(1)求椭圆的标准方程;
(2)若以线段PQ为直径的圆过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eddd0a7d62c553d3ad17e2be6e8fdaf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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名校
解题方法
8 . 某高校的志愿者服务小组受“进博会”上人工智能展示项目的启发,会后决定开发一款“猫捉老鼠”的游戏.如下图:A、B两个信号源相距10米,O是AB的中点,过O点的直线l与直线AB的夹角为
.机器猫在直线l上运动,机器鼠的运动轨迹始终满足;接收到A点的信号比接收到B点的信号晚
秒(注:信号每秒传播
米).在时刻
时,测得机器鼠距离O点为4米.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/1/5b3eab85-6ad8-4dc4-83b8-447a4781d666.png?resizew=160)
(1)以O为原点,直线AB为x轴建立平面直角坐标系(如图),求时刻
时机器鼠所在位置的坐标;
(2)游戏设定:机器鼠在距离直线l不超过1.5米的区域运动时,有“被抓”的风险.如果机器鼠保持目前的运动轨迹不变,是否有“被抓”风险?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe04a293e2187f017287312aedc46be6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f58888df91890a19a1aa7511d19703f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d9fd58e71dcae6cafaf9037d20ebd76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/1/5b3eab85-6ad8-4dc4-83b8-447a4781d666.png?resizew=160)
(1)以O为原点,直线AB为x轴建立平面直角坐标系(如图),求时刻
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d9fd58e71dcae6cafaf9037d20ebd76.png)
(2)游戏设定:机器鼠在距离直线l不超过1.5米的区域运动时,有“被抓”的风险.如果机器鼠保持目前的运动轨迹不变,是否有“被抓”风险?
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9 . 已知双曲线
,
是双曲线
上一点.
(1)若椭圆
以双曲线
的顶点为焦点,长轴长为
,求椭圆
的标准方程;
(2)设
是第一象限中双曲线
渐近线上一点,
是双曲线
上一点,且
,求
的面积
(
为坐标原点);
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f0e1c08de10bd97b1327a041e74ea88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eece0282f083e0612a69e370b51c8dd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(1)若椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41322821ce31416fdac8dd6e0aa41c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e37fe14e04dc277ea1bc92068fd36ae3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fdc02f00cf00a6dfd88b53a90f1f7a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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2024-01-12更新
|
195次组卷
|
3卷引用:上海市青浦区朱家角中学2023-2024学年高二上学期期末考试数学试题
名校
解题方法
10 . 已知椭圆
(
)的离心率为
,其上焦点
与抛物线
的焦点重合.若过点
的直线交椭圆
于点
,过点
与直线
垂直的直线
交抛物线
于点
(如图所示),则四边形
面积的最小值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a0e7a68e0ce319f3df1f2ce30e3e76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61be090d2f56224b572047d9b36dc3d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52041559f8fee18bfa3e2e2ac07c3bfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87391c2b154b302f4bf939035f59b99c.png)
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2024-01-12更新
|
353次组卷
|
4卷引用:上海市青浦区朱家角中学2023-2024学年高二上学期期末考试数学试题
上海市青浦区朱家角中学2023-2024学年高二上学期期末考试数学试题江西省新余市实验中学2023-2024学年高二下学期开学摸底考试数学试卷(已下线)专题02 圆锥曲线中的求值问题(三大题型)(已下线)专题04 圆锥曲线(六大题型+优选提升题)-【好题汇编】备战2023-2024学年高二数学下学期期末真题分类汇编(沪教版2020选择性必修,上海专用)