名校
解题方法
1 . 已知双曲线
的左,右焦点分别为
为
右支上一点,
的内切圆圆心为
,直线
交
轴于点
,则双曲线的离心率为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76ed463bf16c78a4bbb9d3acff922afa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/451261a82e8ff001010d9d4db535f4c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f19b2e24f09d24daf3b3b41a8246d292.png)
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2024-01-29更新
|
2426次组卷
|
4卷引用:黑龙江省大庆市实验中学实验二部2023-2024学年高三下学期得分训练(三)数学试卷
名校
解题方法
2 . 数学家欧拉在1765年发现了九点圆,即在任意的三角形中,三边的中点、三条高的垂足、三条高的交点(垂心)与三角形顶点连线的中点,这九个点共圆,因此九点圆也称作欧拉圆.已知在
中,
,
,
,则
的九点圆的半径为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24705e5759ac944559f305c694c9f6d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f63f0bdeade1904c747ec9ef0ff3443.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-01-16更新
|
480次组卷
|
4卷引用:黑龙江省牡丹江市第一高级中学2023-2024学年高一下学期4月月考数学试题
黑龙江省牡丹江市第一高级中学2023-2024学年高一下学期4月月考数学试题黑龙江省大庆市实验中学实验二部2023-2024学年高三下学期得分训练数学试卷(二)广东省揭阳市2024届高三上学期期末教学质量测试数学试题(已下线)考点20 三角函数的数学文化 --2024届高考数学考点总动员【讲】
名校
解题方法
3 . 在
中,角
所对的边分别为
,且
.
(1)求角
;
(2)
为
边上一点,
,且
,求
的值.
![](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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25659c05631f6a807669644241fb4cf.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13097c1cd5f97457e18183471c0d1296.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b16bdd93abe90e02f0d7da8bfb4894b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa6361e919ac07ee6ed642556e1d1ae.png)
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2024-01-14更新
|
1306次组卷
|
2卷引用:黑龙江省哈尔滨市第三中学2024届高三上学期期末数学试题
解题方法
4 . 已知
是双曲线
的左,右焦点,
的一条渐近线
的方程为
,且
到
的距离为3,
为
的第一象限上的一点,点
的坐标为
为
的平分线,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/204196267ea8c9ec2544b3084d7952da.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f86bebdf5931efbdc627baa52f97392e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64dfdc4da53a7913b01647d751c77c8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94fe48bf7af022ecbbe13833fdcc2c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/204196267ea8c9ec2544b3084d7952da.png)
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名校
解题方法
5 . 已知
是椭圆
的两个焦点,
为椭圆上一点.且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9055f58bf6bb8d6c55dcc14b2ae51b4c.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b971902999be2472828cbea1f1d5725a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c88476c0b0200d6f8ef8e82eb0db784.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9055f58bf6bb8d6c55dcc14b2ae51b4c.png)
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6 . 在棱长为1的正方体
中,下列结论正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
A.![]() ![]() |
B.点![]() ![]() ![]() |
C.当![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
名校
7 . 在
中,
,点A在线段
上,
,且
,
,
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/9/5d37d1b4-dd16-4b88-b978-1a1243ce1222.png?resizew=155)
(1)求
的值;
(2)求
的值和
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192bc3409ede90aa3c0014e35e095557.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36de91a167e07f2ed72196dc44e641d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/957d4fb16e614269435401922f33d088.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5958e643273608cce9aa9c54d7316ba.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/9/5d37d1b4-dd16-4b88-b978-1a1243ce1222.png?resizew=155)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
您最近一年使用:0次
8 . 如图,双曲线的光学性质:
是双曲线的左、右焦点,从
发出的光线m射在双曲线右支上一点P,经点P反射后,反射光线的反向延长线过
;当P异于双曲线顶点时,双曲线在点P处的切线
平分
.若双曲线C的方程为
,则下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/9/3da792e0-f10f-4fd9-9606-b87443af5132.png?resizew=291)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d583183429b6b31aa9742eefc67d3181.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94fe48bf7af022ecbbe13833fdcc2c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9a0bd4bd9985f1e367c100b453ed03f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/9/3da792e0-f10f-4fd9-9606-b87443af5132.png?resizew=291)
A.若射线n所在直线的斜率为k,则![]() |
B.当![]() ![]() |
C.当![]() ![]() |
D.若点T的坐标为![]() ![]() ![]() |
您最近一年使用:0次
2024-01-06更新
|
858次组卷
|
4卷引用:黑龙江省哈尔滨市第九中学校2023-2024学年高三下学期开学考试数学试题
9 . 在
中,内角
所对的边分别为
,已知
,
,且
.
(1)求角
的大小;
(2)若
,
的面积为
,求
的周长
![](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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2df43c6dbfc3c8b1a5de2d36da16e897.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f8a5c911ec7fecbdb0df07c6666082.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b907456faac5d0995bd73f7da94c9b8.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f70e94b27cd31f331b49614c0a45b58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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10 . 已知
的内角
,
,
的对边分别为
,
,
,若
,
,
,则
边上的中线
是长为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f08ce80e91fdf435a8e3ec05be990e9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23725094c363fd158166a8698971694c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60b97bb18e5ca34d22b5e827316a122a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次
2024-04-10更新
|
313次组卷
|
7卷引用:黑龙江省齐齐哈尔市第八中学校2023-2024学年高一下学期期中考试数学试卷
黑龙江省齐齐哈尔市第八中学校2023-2024学年高一下学期期中考试数学试卷(已下线)专题14 解三角形求角问题(已下线)第14讲 拓展二:三角形中线,角平分线问题-【帮课堂】(人教A版2019必修第二册)(已下线)专题03 解三角形(解密讲义)(已下线)黄金卷07广东省东莞市嘉荣外国语学校2023-2024学年高一下学期3月月考数学试卷江苏省淮安市高中校协作体2024届高三上学期期中联考数学试题