解题方法
1 . 已知双曲线
的左、右焦点分别为
,
,点A为双曲线渐近线上的一点,满足
(O为坐标原点),
,则该双曲线的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.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/da8e8cb2f960477fdfe014cfe84529ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a62cd39019b41b4bc2e7df87844868.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2 . 在
中,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a0ff97eafe491e8e9ff7bb400867947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
A.25 | B.5 | C.4 | D.![]() |
您最近一年使用:0次
2023-02-14更新
|
3888次组卷
|
17卷引用:北京市东直门中学2021 - 2022学年高一下学期期中考试数学试题
北京市东直门中学2021 - 2022学年高一下学期期中考试数学试题(已下线)北京市大兴区北京亦庄实验中学2022-2023学年高一下学期第4学段教与学质量诊断(期末)数学试题陕西省渭南市临渭区2022-2023学年高二上学期期末理科数学试题陕西省渭南市临渭区2022-2023学年高二上学期期末文科数学试题河北省高碑店市崇德实验中学2022-2023学年高一下学期2月月考数学试题第11章 解三角形(单元测试)-2022-2023学年高一数学同步精品课堂(苏教版2019必修第二册)(已下线)第02讲 正弦定理和余弦定理12种常见考法归类(1)湖南省益阳市安化县2022-2023学年高一下学期期末数学试题吉林省长春市新解放学校2022-2023学年高一下学期第一次月考数学试题(已下线)高一下期中真题精选(基础60题专练)-【满分全攻略】2022-2023学年高一数学下学期核心考点+重难点讲练与测试(人教A版2019必修第二册)(已下线)核心考点01平面向量及其应用(2)(已下线)专题01:基本量法解三角形(三大类型)江苏省连云港市华杰高级中学2022-2023学年高一下学期3月阶段检测数学试卷(已下线)第六章 三角(2)-单元速记·巧练(沪教版2020必修第二册)福建省福州市闽侯县第一中学2023-2024学年高一下学期3月月考数学试题广东省高州市2023-2024学年高一下学期3月月考数学试题江苏省徐州市铜山区2023-2024学年高一下学期第一次质量检测(3月)数学试卷
解题方法
3 . 在四面体
中,
是边长为2的正三角形,
垂直于面
且
,M,N分别是
的中点,则异面直线
夹角的正弦值等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5064f5ce5ac8428e277fd578da84ec6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374fe9986ebbc986fc422e514ab93a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1f995343924381e01c08f337a38850d.png)
A.![]() | B.![]() | C.![]() | D.以上答案都不对 |
您最近一年使用:0次
4 . 在
中,若
,且
,则
面积的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f21fb9f6a0d8dfca0c2059f82e5cd152.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de1d395e6c48c0676a1488a299479d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() | B.2 | C.![]() | D.![]() |
您最近一年使用:0次
5 . 已知
的三条边分别为3,4,6,则长为6的边对应的中线的长度位于区间( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() | B.![]() |
C.![]() | D.以上答案都不正确 |
您最近一年使用:0次
6 . 如图,已知
为
中
的平分线.过点A作
的垂线
,过点C作
交
于点E.若
与
交于点F,且
,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/27/4cb5ab37-3715-4f8b-b0d3-2599ac9b494b.png?resizew=166)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec5d3a183594be47dd6e386d2c9d725.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ec23f06c20db7d75497246367c5249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81b1fce5acb99c537df69d9d66141305.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/27/4cb5ab37-3715-4f8b-b0d3-2599ac9b494b.png?resizew=166)
A.![]() | B.![]() | C.![]() | D.以上答案都不对 |
您最近一年使用:0次
7 . 对角线长分别为11和23,且边长均为正整数的互不全等的平行四边形的个数为( )
A.1 | B.2 | C.3 | D.前三个选项都不对 |
您最近一年使用:0次
8 . 在
中,若
,
,
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcdb7a488910743dc5c63afb394b87e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e207b2baf056a7d6a6bde1f23bf12bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe7a93172d308a58200e3c722fe1072.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
9 . 如图,在直三棱柱
中,若
,
,
,则异面直线
与
所成的角的余弦值为( )
![](https://img.xkw.com/dksih/QBM/2023/1/7/3147569791877120/3148232694030336/STEM/2019c8be65fb4c298c3511c3938553a9.png?resizew=167)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad1a56baf43ffdf67bc8460856e31fec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98e486a1aad96167ff62f6fb5136e0bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/912f6df9e88c60ef193a74ce6d7e7043.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://img.xkw.com/dksih/QBM/2023/1/7/3147569791877120/3148232694030336/STEM/2019c8be65fb4c298c3511c3938553a9.png?resizew=167)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
10 . 如图,平面
平面
,
,A,B是直线l上的两点,C,D是平面
内的两点,且
,
,
,
,
,若平面
内的动点P满足
,则四棱锥
的体积的最大值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/8/9ab581d9-ae3e-4758-a2aa-183c6f420b39.png?resizew=178)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa807136194c18d3ac58902c67f9333.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40b707f5ee4fbb2e637c65fbc6d8ed03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e498078756c976d87931c17185a0ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c875d12a4ee3a9b6656bdfe4919ad18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ef9a26f10ec80be707dd4c282be9c8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a81c5699a01b6b12b16ff9bce6d6ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9c4807350e42413a2d54b63e18b728.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/8/9ab581d9-ae3e-4758-a2aa-183c6f420b39.png?resizew=178)
A.24 | B.![]() | C.48 | D.![]() |
您最近一年使用:0次
2023-01-06更新
|
719次组卷
|
6卷引用:北京市朝阳区2022-2023学年高二上学期数学期末试题
北京市朝阳区2022-2023学年高二上学期数学期末试题(已下线)第八章立体几何初步章末题型大总结(精讲)(3)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)江西省吉安市第三中学2022-2023学年高二上学期期末考试数学试题(已下线)第五篇 向量与几何 专题1 蒙日圆与阿氏圆 微点8 阿波罗尼斯球(已下线)第二章 立体几何中的计算 专题七 空间范围与最值问题 微点3 面积、体积的范围与最值问题(一)【基础版】(已下线)8.6.3平面与平面垂直 (第2课时) -【上好课】(人教A版2019必修第二册)