1 . 直线
将圆
分成两段圆弧,则较短圆弧与较长圆弧的弧长之比为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baabfd32465e9e50409413d9c1358279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c8e5085828491f60b357024c3e72c66.png)
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2 . 已知圆
,圆
的半径为
,过直线
上的动点
作圆
的切线,切线长始终相等,则圆
的标准方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70feca8eac775ebee7b6d9760e2be6f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a68c1d20a422a363e356a160f096503c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcaada7649455fbebcdbdbb9a94e6a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e9feabc99f62ee569b460e61526e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
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3 . 在
中,内角
的对边分别为
,若
且
为
的外心,
为
的重心,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/529a9b0d2b9baa16e3f1aab8b946f270.png)
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4 . 若实数x,y满足
,则
的最大值为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a143573e9fe53e6a861154bf5b4c27c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3345715f6a5c7f80a4898d1745b01bb.png)
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2024-03-20更新
|
1623次组卷
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5卷引用:安徽省芜湖市安徽师范大学附属中学2024届高三第二次模拟考试数学试题
安徽省芜湖市安徽师范大学附属中学2024届高三第二次模拟考试数学试题安徽省天域全国名校协作体2024届高三下学期联考(二模)数学试题江苏省无锡市锡东高级中学2024届高三下学期4月月考数学试题(已下线)安徽省天域全国名校协作体2024届高三下学期联考(二模)数学试题变式题11-15(已下线)压轴题06向量、复数压轴题16题型汇总-1
解题方法
5 . 已知
为
的外接圆圆心,且
.设实数
满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/364cd9f89b335e94325612ff79452a9b.png)
,则
的取值范围为______ .
![](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/9107634ddcebadee54ec222ab1ee963a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ec6fb9e0625b85be3103d317fbb0cca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/364cd9f89b335e94325612ff79452a9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71d96aaa38e9db4b95866bbff3f2252.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c14dacbfcf31533aeffb0f9249f2e298.png)
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6 . 某中学开展“劳动创造美好生活”的劳动主题教育活动,展示劳动实践成果并进行评比,某学生设计的一款如图所示的“心形”工艺品获得了“十佳创意奖”,该“心形”由上、下两部分组成,并用矩形框
虚线
进行镶嵌,上部分是两个半径都为
的半圆,
分别为其直径,且
,下部分是一个“半椭圆”,并把椭圆的离心率叫做“心形”的离心率.
,则当该矩形框面积最大时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/258e40e3883271c3580c1d3c805dcac6.png)
__________ ;
(2)若
,图中阴影区域的面积为
,则该“心形”的离心率为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ce072bcd423b56c827e40f0b731de85.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/258e40e3883271c3580c1d3c805dcac6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7551011cfb75b26f35b07d6617c6a18b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df9eb8f0efaf6fe8a69150fcdf3c83fc.png)
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2024-03-03更新
|
281次组卷
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3卷引用:江西省宜春市宜丰中学2023-2024学年高二下学期3月月考数学试题
7 . 如图,一个酒杯的内壁的轴截面是抛物线的一部分,杯口宽
,杯深
,称为抛物线酒杯. 在杯内放入一个小的玻璃球,要使球触及酒杯底部,则玻璃球的半径的最大值为_____________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4de7cb50f975c3d9c82d1e71ccf8020.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07fb986e1a656aac2f6982351c4324ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72026e70f45cea6a7c49881592e73a02.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/a5f11f9e-4462-4209-a262-891a86ec9c00.png?resizew=241)
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8 . 已知直线
与直线
相交于点
,其轨迹记为曲线
,曲线
的方程为
,点
,
分别在曲线
,
上运动,点
在直线
上,若直线
经过点
,且与两曲线
,
的公共弦所在的直线垂直,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d19b5f51544de84ec35a34a992ce114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bd7a3c761ade49cc51ea60214af887e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](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/b16225c4923f43fb57ab484753c4f01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed1b3031d7393a63719166285314d73f.png)
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9 . 已知直线
:
与圆
:
、圆
:
相交于从左到右依次排列的四个不同点A,B,C,D,且满足
,则线段
的长为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13ecb65d13fbcf4a352cf8cefbc4182.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d3b3d51c6ede413050d959ca82be3bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/495021c7da1c77e6ed1d1dd30e0be7bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
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10 . 画法几何的创始人法国数学家加斯帕尔
蒙日发现:与椭圆相切的两条垂直切线的交点的轨迹是以椭圆中心为圆心的圆,我们通常把这个圆称为该椭圆的蒙日圆.已知椭圆
的离心率为
分别为椭圆的左、右焦点,
为椭圆上两个动点.直线
的方程为
.给出下列四个结论:
①
的蒙日圆的方程为
;
②在直线
上存在点
,椭圆
上存在
,使得
;
③记点
到直线
的距离为
,则
的最小值为
;
④若矩形
的四条边均与
相切,则矩形
面积的最大值为
.
其中所有正确结论的序号为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c97ec04a1aa7ac6fce72d589864940a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d02904676fe59cd21f036b222273b8db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/426725e54032dce0135c0cb184264602.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/050973e046bf8aef978e0739bca3db98.png)
②在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83640592853a53872d7af69c0cffc1bb.png)
③记点
![](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/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35929c347f939fbfe8773b8b3ee2fa31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bff8399dc513b553529ef15f26f79b8.png)
④若矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a315e4b5963127bf8550cde03ca1966d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a315e4b5963127bf8550cde03ca1966d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e715c40ab558d10904766dc3f58010ef.png)
其中所有正确结论的序号为
您最近一年使用:0次
2024-01-18更新
|
292次组卷
|
3卷引用:北京市大兴区2023-2024学年高二上学期期末检测数学试题
北京市大兴区2023-2024学年高二上学期期末检测数学试题北京市八一学校2023-2024学年高三下学期开学摸底考试数学试题(已下线)2.2.2 椭圆的性质(十八大题型)(分层练习)-2023-2024学年高二数学同步精品课堂(沪教版2020选择性必修第一册)