名校
解题方法
1 . 在
中
,点O在
所在平面内,且
,
,则
外接圆的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e899c486dc49e560fc4aca05e16835b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb5c93513154e557bc53540191c8ae55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a5d107c86e0f564e5a55084958b9554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-11-23更新
|
591次组卷
|
3卷引用:山东省临沂市2023-2024学年高三上学期期中考试数学试题
解题方法
2 . 在
中,
,
,D是边AB上一点,且满足
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b98499dbd54f2db27b8c4d97fdcaec4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/413d82466dd1cda833ad1921e1f7f49c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e708e183cdd8f37af223916aec2ec390.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7492d1772dbdcf76b1e2ad860557b22.png)
您最近一年使用:0次
名校
解题方法
3 . 已知
、
分别为
(
)椭圆的左、右焦点,过
的直线与椭圆交于
、
两点,若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df499ae1321a0a13ed27900bf6aeb24e.png)
____ ,椭圆的离心率为___ .
![](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/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2e0b859b7b58cee42762156e868e72b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4b3fe440e1d45de6f1236369c91ac2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df499ae1321a0a13ed27900bf6aeb24e.png)
![](https://img.xkw.com/dksih/QBM/2021/4/30/2711018993164288/2785346789498880/STEM/dffd3927-3950-46fd-98c4-735406f5f549.png?resizew=270)
您最近一年使用:0次
2021-08-13更新
|
904次组卷
|
8卷引用:山东省枣庄市滕州市第一中学2021-2022学年高二上学期期中数学试题
山东省枣庄市滕州市第一中学2021-2022学年高二上学期期中数学试题浙江省温州新力量联盟2020-2021学年高二下学期期中联考数学试题福建省泉州市现代中学2022-2023学年高二上学期期中数学试题湖南省常德市武陵区常德市一中2023-2024学年高二上学期期中数学试题天津市滨海新区实验中学滨海学校2024届高三上学期期中质量调查数学试题(已下线)第十一章 圆锥曲线专练3—椭圆的离心率1-2022届高三数学一轮复习(已下线)第十一章 圆锥曲线专练2—椭圆小题2-2022届高三数学一轮复习(已下线)2021年新高考浙江数学高考真题变式题11-16题
4 . 已知平面向量
,
满足
,
,
与
的夹角为
,若
,则实数
的值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deae5171eb718a10261d9b632aa7c2ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bcb140aa73fbe827043dca511ea1335.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d580387905b76535f016325ccb6a669a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c62c03da1e83dba1ac2532095d7dcf23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deae5171eb718a10261d9b632aa7c2ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bcb140aa73fbe827043dca511ea1335.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84288b493b64c3a30466fb9075621da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8533aba1a5463ebba51131ed5acc7a3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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