1 . 在
中,“
是正三角形”是“A,B,C成等差数列且
,
,
成等比数列”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b01adc561735ff5be9bb97266918f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e5d4f93699f8dcffb0e7840ca5597e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32e2f2d7147cf1699fbfdef9cf4af74.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
名校
解题方法
2 . 如图,已知抛物线
的焦点为
,准线与
轴的交点为
,过点
的直线
与抛物线交于第一象限的
两点,若
,则直线
的斜率![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be9301e7fdb5950e1229dfa4b8a54f23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
您最近一年使用:0次
2024高二·全国·专题练习
名校
解题方法
3 . 如图,
是等边三角形,
是
边上的动点(含端点),记
,
.
(1)求
的最大值;
(2)若
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b6492fc7ac544c5cb196b3bee457d78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/226b1dc6b85b6b76c99420be4f82e1d3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/15/adcd5c0e-fce4-457b-bb70-be053345eaee.png?resizew=152)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dbb8946dd3f6ef3e816da7fdca83993.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35b2ac64b0463f3fcbb725ea7f59e45c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833243568eaaf9053e68dee1e9289770.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bb961bd7db3adb76af2d4cedb611bd7.png)
您最近一年使用:0次
2024高二·全国·专题练习
解题方法
4 . 如图,平面四边形
中,
与
交于点
,若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56b596e35b42cd63d83a861dd9f586b8.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a503772d15eea69d1c8739c6b1c3fc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c2f554699faf6ebf48d65bcfb5dc15d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56b596e35b42cd63d83a861dd9f586b8.png)
您最近一年使用:0次
5 . 已知圆
和两点
、
,若圆
上存在一点
,使得
,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ceaf92cf820b8f8d316d2db108cdc246.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2864dfc23d2c04ea229551b768d9a150.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb270e00088462fd4dfdee8ce5da52c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b1c20fa9466374ae5ae611c76f62ac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
6 . 已知,若
的平分线方程为
,则
所在的直线方程为
您最近一年使用:0次
2023-09-01更新
|
1484次组卷
|
6卷引用:第1章 直线与方程章末题型归纳总结(1)
(已下线)第1章 直线与方程章末题型归纳总结(1)(已下线)专题1.2 直线的方程(3个考点八大题型)(2)江苏省宿迁市泗阳县实验高级中学2023-2024学年高二上学期第一次调研测试数学试题重庆市南开中学校2023-2024学年高二上学期9月测试数学试题河北省保定市定州中学2023-2024学年高二上学期9月月考数学试题福建省泉州市惠安惠安一中、安溪一中、养正中学、泉州实验中2023-2024学年高二上学期期中数学试题
名校
7 . 已知正三棱柱的所有顶点都在同一个半径为
的球面上,则该三棱柱侧面积的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b91d650c2fc1a741fabdb333b09aeb6.png)
您最近一年使用:0次
2023-08-03更新
|
682次组卷
|
4卷引用:专题09 球(6个知识点6种题型1种高考考法)-【倍速学习法】2023-2024学年高二数学核心知识点与常见题型通关讲解练(沪教版2020必修第三册)
(已下线)专题09 球(6个知识点6种题型1种高考考法)-【倍速学习法】2023-2024学年高二数学核心知识点与常见题型通关讲解练(沪教版2020必修第三册)(已下线)11.1 柱体(第2课时)(五大题型)(分层练习)-2023-2024学年高二数学同步精品课堂(沪教版2020必修第三册)(已下线)专题03 空间几何体的体积、表面积及空间角-《期末真题分类汇编》(天津专用)天津市杨柳青一中、咸水沽一中 、四十七中,第一百中学四校2022-2023学年高一下学期期末联考数学试题
解题方法
8 . 已知a,b,c分别为
三个内角A,B,C的对边,且
.
(1)证明:
;
(2)若
,
,
,求AM的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35314b7942eae29de8b67b578f7c4c8d.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e12afa49ce117afc97c5261a0364a9cc.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/819c7a62f0c3f64f53370d19db912c13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f08ce80e91fdf435a8e3ec05be990e9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ecb91d19a693299dcdad4059b6237a1.png)
您最近一年使用:0次
2023-07-25更新
|
150次组卷
|
2卷引用:【人教A版(2019)】专题21(一轮复习)三角函数与解三角形(第二部分)-高二下学期名校期末好题汇编
解题方法
9 . 在
中,角
,
,
的对边分别是
,
,
,已知
,且
,角
为锐角.
(1)求
;
(2)若
,求
的面积.
![](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/4e20e72ff51a3009e64571ab91fc450b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26c12eb90d871c005b6b7e8fdd98c85b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76854a6bf9c7324f5e5a437a4488b358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
10 . 已知a,b,c分别为
内角A,B,C的对边,已知
若
还满足下列两个条件中的一个:①
;②
.请从①②中选择一个条件,完成下列问题.我选择___________(填①或者②).
(1)求
;
(2)求对应
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d701179715510533cd7b0496347e3004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4403d2ba19f8dc79b8366f7b1a3dc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e190301173d3336d2b8f31eee5b9f7bd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求对应
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次