1 . 已知椭圆
过
两点.
(1)求椭圆C的方程;
(2)F为椭圆C的右焦点,直线l交椭圆C于P,Q(均不与点A重合)两点,记直线AP,AQ,l的斜率分别为k1,
,
,若
,求△FPQ的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc6c1f9365d0b8de9c36b1a670794e39.png)
(1)求椭圆C的方程;
(2)F为椭圆C的右焦点,直线l交椭圆C于P,Q(均不与点A重合)两点,记直线AP,AQ,l的斜率分别为k1,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77de9aee09932464e7d927e517564a81.png)
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4卷引用:广西壮族自治区河池、来宾、百色、南宁市2023届高三上学期联合调研考试理科数学试题
广西壮族自治区河池、来宾、百色、南宁市2023届高三上学期联合调研考试理科数学试题广西玉林、贵港、贺州市2023届高三联合调研考试(一模)数学(理)试题广西桂林崇左市2023届高三上学期联合调研考试(一调)数学(理)试题(已下线)广东省2022届高三一模数学试题变式题17-22
名校
解题方法
2 . 如图,椭圆
(
)的离心率为
,其短轴和长轴的端点分别为A,B,C,D,且
.
![](https://img.xkw.com/dksih/QBM/2022/12/19/3134451182362624/3134861796286464/STEM/091444bd2e9448c28c13d8f0a112124e.png?resizew=511)
(1)求椭圆的方程;
(2)P是椭圆上位于x轴上方的动点,直线
,
与直线l:
分别交于G、H两点.若
,求点P的坐标;
(3)直线
,
分别与椭圆交于E,F两点,其中点
满足
且
.若
面积是
面积的5倍,求t的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f371c0b1d573c06516ab1904d95ee49f.png)
![](https://img.xkw.com/dksih/QBM/2022/12/19/3134451182362624/3134861796286464/STEM/091444bd2e9448c28c13d8f0a112124e.png?resizew=511)
(1)求椭圆的方程;
(2)P是椭圆上位于x轴上方的动点,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8e1e5a89003de4fda1dcf41565a9057.png)
(3)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ba1b211aa0cb973622f3031462ad8dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/823ab696d27d40920c39b8c910789380.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efb14f5a795eb84d125e5f82e73fdbb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/918db766afc11101b1e4584fcf6881f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d42f7c63d03656e40f914486ddf22de4.png)
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2卷引用:广东省广州市西外2022-2023学年高二上学期期末数学试题
名校
3 . 已知椭圆
的右焦点为
,上顶点为
,离心率为
,且过点
且与
轴垂直的直线被椭圆截得的线段长为
.
(1)求椭圆的标准方程;
(2)直线
与椭圆有唯一的公共点
,与
轴的正半轴交于点
,过
与
垂直的直线交
轴于点
.若
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe2c533dbc23a34518f72f3cb14f330.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a391005600bdd69c96750589f9adb048.png)
(1)求椭圆的标准方程;
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5bd66dd6d5e09ff0893a938aed56e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6d178a7310c9e613c29648745355ad8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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6卷引用:天津市南开中学2022-2023学年高二上学期期末结课练习数学试题
天津市南开中学2022-2023学年高二上学期期末结课练习数学试题(已下线)期末押题预测卷02(范围:选择性必修第一册、选择性必修第二册)-【单元测试】2022-2023学年高二数学分层训练AB卷(人教B版2019)天津市第二耀华中学2022-2023学年高三上学期第二次月考数学试题天津市耀华中学2022-2023学年高三上学期第三次月考数学试题天津市南开大学附属中学2023届高三下学期3月统练(二)数学试题(已下线)信息必刷卷02(天津专用)
名校
解题方法
4 . 已知椭圆
上有点
,左、右焦点分别为
.
(1)求椭圆的标准方程;
(2)若点Q为椭圆的上顶点,椭圆上有异于Q的两点
满足
,求证:直线
恒过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfc2210a7e09298897f6585ad08a70d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f49644cd9fa4688cc3a74a234952530.png)
(1)求椭圆的标准方程;
(2)若点Q为椭圆的上顶点,椭圆上有异于Q的两点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0615bfe416db14d15783f764613ae84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
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8卷引用:青铜鸣2022-2023学年高二上学期联考数学试题
名校
解题方法
5 . 国家体育场“鸟巢”的钢结构鸟瞰图如图1所示,内外两圈的钢骨架是离心率相同的椭圆;某校体育馆的钢结构与“鸟巢”相同,其平面图如图2所示,若由外层椭圆长轴一端点A和短轴一端点B分别向内层椭圆引切线AC,BD,且两切线斜率之积等于
,则椭圆的离心率为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/b9fc3953-981d-45b7-b222-5aef6a61adc1.png?resizew=163)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/2c107155-53be-4c62-bfad-01f894e48a99.png?resizew=191)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f30d314a642667fef559032264647366.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/b9fc3953-981d-45b7-b222-5aef6a61adc1.png?resizew=163)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/2c107155-53be-4c62-bfad-01f894e48a99.png?resizew=191)
A.![]() | B.![]() | C.![]() | D.![]() |
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5卷引用:浙江省杭州第四中学下沙校区2022-2023学年高二上学期期末数学试题
浙江省杭州第四中学下沙校区2022-2023学年高二上学期期末数学试题安徽省合肥市六校联盟2022-2023学年高二上学期期中联考数学试题广东省东莞市东莞外国语学校2023-2024学年高二上学期第二次段考数学试题(已下线)第八章 解析几何 专题8 有关椭圆的离心率问题 高中数学优质试题一题多解和变式训练新疆维吾尔自治区阿克苏地库车市第二中学2023-2024学年高二上学期期中数学试题
6 . 已知椭圆
短轴的两个顶点与右焦点的连线构成等边三角形,直线
与圆
相切.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/c80e63a6-5476-4192-b576-6eba2dc5f046.png?resizew=170)
(1)求椭圆
的方程;
(2)过点
作两条互相垂直的直线
,与椭圆
分别交于
四点,如图,求四边形
的面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638c8ebe4d2e418f1783269f71ef3826.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a615f9580012e20b1a33ba6732778853.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/c80e63a6-5476-4192-b576-6eba2dc5f046.png?resizew=170)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/317ebedfc0f5a96937fad87914a6f74b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c82a10b4f0c9323d726804c89dd9548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c593ebdb2f1934a0cb56f8c44f454f8.png)
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2022-12-03更新
|
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7卷引用:吉林省通化梅河口市第五中学2022-2023学年高三上学期期末考试数学试题
吉林省通化梅河口市第五中学2022-2023学年高三上学期期末考试数学试题(已下线)期末押题预测卷01(范围:选择性必修第一册、选择性必修第二册)-【单元测试】2022-2023学年高二数学分层训练AB卷(人教B版2019)山东省青岛市第十七中学2022-2023学年高二上学期期末数学试题四川省成都市东部新区养马高级中学2022-2023学年高二上学期期中考试数学(理)试题(已下线)专题13 圆锥曲线压轴解答题常考套路归类(精讲精练)-1(已下线)专题04 圆锥曲线经典题型全归纳(1)(已下线)高二数学开学摸底考01(新高考地区)-2023-2024学年高中下学期开学摸底考试卷
名校
7 . 已如椭圆
的左,右两焦点分别是
,其中
,直线
与椭圆交于A,B两点.则下列说法中正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c21b2006b5b4095ac23eca5cbc032e6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbde5647957b7a0488936857a4adfe27.png)
A.若![]() ![]() |
B.若![]() ![]() |
C.![]() ![]() |
D.若![]() ![]() |
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|
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2卷引用:湖北省恩施州高中教育联盟2022-2023学年高二上学期期末数学试题
名校
解题方法
8 . 已知椭圆
:
的离心率为
,短轴长为2.
(1)求
的方程;
(2)过点
且斜率不为0的直线
与
自左向右依次交于点
,
,点
在线段
上,且
,
为线段
的中点,记直线
,
的斜率分别为
,
,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad3a4d8eb0a4f3dd417124a19f60066.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1f2ade1d986cefa2a3e96590306490d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.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/b4757181824e15e0f21e5bdd55448783.png)
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10卷引用:广东省揭阳市揭西县2022-2023学年高二上学期期末数学试题
广东省揭阳市揭西县2022-2023学年高二上学期期末数学试题江苏省南通市海安市2022-2023学年高三上学期期初学业质量监测数学试题广东省深圳市福田区外国语高级中学2023届高三上学期第二次调研数学试题(已下线)专题39 圆锥曲线中的定点、定值问题-1广东省普宁市华美实验学校2023届高三上学期第二次月考数学试题安徽省部分学校2023届高三下学期开学考试数学试题(已下线)3.3(附加3)圆锥曲线定点与定值问题-2022-2023学年高二数学《基础·重点·难点 》全面题型高分突破(苏教版2019选择性必修第一册)(已下线)第26讲 圆锥曲线中定值问题(2)宁夏回族自治区石嘴山市平罗县平罗中学2023届高三二模理科数学试题(已下线)高二数学第一学期期期末押题密卷03卷
名校
解题方法
9 . 已知椭圆
:
的左、右焦点分别为
,
,点
是椭圆
的一个顶点,
是等腰直角三角形.
(1)求椭圆
的标准方程;
(2)过点
分别作直线
,
交椭圆于A,
两点,设两直线
,
的斜率分别为
,
,且
,证明:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.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/15ed90ebf0061c8a79beed307fc1719a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08f9a699aededce0ad803bf8257fbbcb.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.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/c2b1bd378406bcd8156a56469f9300f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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2022-08-12更新
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10卷引用:广东湛江市2022-2023学年高二下学期期末数学试题
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名校
10 . 已知离心率为
的椭圆
过点
,抛物线
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/18/1ac7c8f6-ece9-4b73-a642-895c0641d054.png?resizew=199)
(1)若抛物线
的焦点恰为椭圆
的右顶点,求抛物线方程;
(2)若椭圆
与抛物线
在第一象限的交点为
,过
但不经过原点的直线
交椭圆
于
,交抛物线
于
,且
,求
的最大值,并求出此时直线
的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50e48d1edbfb6a5a48f9a95551d1dbc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2de52259b426acb42761fec59a7748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79c9c87eba774f6bc072663d32d11fc4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/18/1ac7c8f6-ece9-4b73-a642-895c0641d054.png?resizew=199)
(1)若抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)若椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55899a55390743a4dd830402641d2122.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2022-07-13更新
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2卷引用:重庆市南开中学校2021-2022学年高二下学期期末数学试题