解题方法
1 . 我国南北朝时期的数学家祖暅提出了计算体积的祖暅原理:“幂势既同,则积不容异”,其意思可描述为:夹在两个平行平面之间的两个几何体,被平行于这两个平面的任意平面所截,如果截得的两个截面的面积总相等,那么这两个几何体的体积相等.如图,阴影部分是由双曲线
与它的渐近线以及直线
所围成的图形,将此图形绕y轴旋转一周,得到一个旋转体,则这个旋转体的体积为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ea74737939c0f94c91229a7098f36ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ae466f9a86ba0346698c554f4e13079.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/27/3a1c84c7-fafd-4bd2-ae8a-3327237445a0.png?resizew=211)
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解题方法
2 . 过双曲线
的右焦点
作其中一条渐近线的垂线,垂足为
,直线
与双曲线的左、右两支分别交于点
、
,若
,
,则双曲线的离心率是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632917e61f4208959686d118c7f19231.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7a1329908609af4bf9fbedc8b9d0fd8.png)
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2023-03-18更新
|
538次组卷
|
3卷引用:福建省莆田第一中学2022-2023学年高二下学期3月月考数学试题(A)
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解题方法
3 . 已知双曲线
,
为左焦点,曲线
上的点到左焦点的距离最小值为
,点
,
在
上,且关于原点
对称,
是
上一点,直线
和
满足
,则该双曲线的渐近线方程为 __ ,过
作圆
的两条切线
,
,切点分别为
、
,则
的最大值为 __ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cc808c7c9708d03265d1257d13feefd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47cfe4e08c06bde245e58aa22485044c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e72fa4787a41ad8688f80ecc71560c.png)
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4 . 已知双曲线
的焦点在圆
上,圆O与双曲线C的渐近线在第一、四象限分别交于P,Q两点,点
满足
(其中O是坐标原点),则
的面积是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f6001403c812998f0dcc6a269bf179a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5dbf0e7964cc3f0577358010fc8a7c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a112216665de5f2730f20725fd1c97a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/703609773a08c2cc0a3fa36fb16f3665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1f0417d8269f01d8e0bc1a8756e2ac.png)
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2022-08-24更新
|
1266次组卷
|
8卷引用:福建省龙岩第一中学2021-2022学年高二(实验班)上学期第二次月考数学(文)试题
5 . 已知抛物线
:
的焦点
恰好是双曲线
的右焦点,且
与
的交点的连线过点
,设双曲线
的渐近线的斜率为
,则
的值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c64acf2cf103416ef9fdfbd01933f39c.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b986e3613290b456532843d5ad4c6e67.png)
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6 . 如图为陕西博物馆收藏的国宝——唐·金筐宝钿团花纹金杯,杯身曲线内收,玲珑娇美,巧夺天工,是唐代金银细作的典范之作.该杯型几何体的主体部分可近似看作是双曲线
的右支与直线
,
,
围成的曲边四边形
绕
轴旋转一周得到的几何体,如图
分别为
的渐近线与
,
的交点,曲边五边形
绕
轴旋转一周得到的几何体的体积可由祖暅原理(祖暅原理:幂势既同,则积不容异).意思是:两等高的几何体在同高处被截得的两截面面积均相等,那么这两个几何体的体积相等,那么这两个几何体的体积相等),据此求得该金杯的容积是_____ .(杯壁厚度忽略不计)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/e98fa84b-98e2-4d8c-9983-c95979a75ed7.png?resizew=151)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/504fb7d45215580ecd0f2d6c151a3065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d93246539f83796d6b2101b7bf0c7cf.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50bc56de944da670d70488208eceee30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/e98fa84b-98e2-4d8c-9983-c95979a75ed7.png?resizew=151)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/ff01a64f-6dba-4069-8372-babaa2882571.png?resizew=145)
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2019-04-14更新
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