名校
1 . 在
中,角
所对的边分别为
,
且
,则下列关系可能成立的是( )
![](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/fa0eaa38f02ace7f21968c0cc1e787fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67cf40b73e4b9b9bd9fffb7e85b95808.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-04-19更新
|
421次组卷
|
3卷引用:江苏省南京市协同体七校2022-2023学年高一下学期期中联考数学试题
江苏省南京市协同体七校2022-2023学年高一下学期期中联考数学试题(已下线)11.1 余弦定理-【帮课堂】(苏教版2019必修第二册)山东省泰安市第二中学2023-2024学年高一下学期3月月考数学试卷
名校
2 . 如图,四边形
四点共圆,其中
为直径,
,则
的面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/20/2cf17274-0f51-4075-883e-dde206699b27.png?resizew=137)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73aaa35ba6f66591186d2134161cc918.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/20/2cf17274-0f51-4075-883e-dde206699b27.png?resizew=137)
A.![]() | B.![]() | C.3 | D.![]() |
您最近一年使用:0次
名校
3 . 在
中,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44e0ac458eb5c4eea892145965de8aa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/459459559720ab5e154a80723c47cc30.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-04-19更新
|
674次组卷
|
2卷引用:江苏省南京市协同体七校2022-2023学年高一下学期期中联考数学试题
名校
解题方法
4 . 如图,在平面凸四边形
中(凸四边形指没有角度数大于180°的四边形),
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/23/d227ca9d-7b04-4055-87e3-48fd40e93dab.png?resizew=132)
(1)若
,
,求
;
(2)已知
,求四边形
的面积为S的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7788830ed1cb3b9c5988f70f43595f2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eca7e1a727ba332984ad857b3d25344d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/23/d227ca9d-7b04-4055-87e3-48fd40e93dab.png?resizew=132)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8068483ab891fbed384c92066819382.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cb6039a5d592055b7f843de30370fd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
2023-04-19更新
|
714次组卷
|
3卷引用:江苏省南京市天印高级中学2022-2023学年高一下学期期中数学试题
江苏省南京市天印高级中学2022-2023学年高一下学期期中数学试题广东省肇庆市德庆县香山中学2022-2023学年高一下学期5月月考数学试题(已下线)第六章 平面向量及其应用 单元复习提升(2)-单元速记·巧练(人教A版2019必修第二册)
名校
解题方法
5 . 已知△ABC的三个角A,B,C所对的边为a,b,c,若∠BAC=
,D为边BC上一点,且AD=1, BD:DC=2c:b,,则tan
=___________ 则b+2c的最小值为 ___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
您最近一年使用:0次
2023-04-19更新
|
190次组卷
|
2卷引用:江苏省南京市玄武高级中学2022-2023学年高一下学期期中数学试题
名校
解题方法
6 . 在
中,内角
、
、
的对边分别是
、
、
,下列结论正确的是( )
![](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)
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-04-19更新
|
764次组卷
|
6卷引用:江苏省南京市玄武高级中学2022-2023学年高一下学期期中数学试题
江苏省南京市玄武高级中学2022-2023学年高一下学期期中数学试题江苏省无锡市市北高级中学2023-2024学年高一下学期期中考试数学试题(已下线)衡水二中高三模拟测试(已下线)期末专项02 解三角形-期末高分必刷题型(人教A版2019必修第二册)(已下线)模块五 专题2 全真能力模拟2(苏教版高一)(已下线)第四章 三角函数与解三角形 第六节 第一课时 正弦定理与余弦定理(一)(A素养养成卷)
解题方法
7 . 凸四边形就是没有角度数大于180°的四边形,把四边形任何一边向两方延长,其他各边都在延长所得直线的同一旁,这样的四边形叫做凸四边形,如图,在凸四边形ABCD中,
,
,
,
,当
变化时,对角线BD的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f656e1d1f68954e5f06de8958f6a9310.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bf10d92f20501e19d25f6f4159aab89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ed126eea43f2dd2184e533280a6b357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
A.4 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
8 . 在
中,角
的对边分别是
,若
,
,
,则
=( )
![](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/d3f11974b878b1c24185d84a3b978dc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcdb7a488910743dc5c63afb394b87e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0f41cb252b9b4ed62594da3371a5c73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
A.![]() | B.![]() | C.6 | D.![]() |
您最近一年使用:0次
解题方法
9 . 在
中,已知
为线段
上的点,且
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6208e8cfa20722fec44c557fdd185eab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b8fe4b40606d4e67aa7f3e23e0a4d14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fd383d59b0379b0603a9f58a89b1e66.png)
A.![]() | B.4 | C.3 | D.![]() |
您最近一年使用:0次
名校
10 . 在直角
中,
,
,
为
的中点,
,
分别为线段
,
上异于
,
的动点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/18/50b71764-02a4-4c5e-a985-cd442bd916e1.png?resizew=159)
(1)当
时,求
的长度;
(2)若
为
的中点,设
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27436da39b339873c7258301e4c04f87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f959709747004dcf4e9c84ad544dc65c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/18/50b71764-02a4-4c5e-a985-cd442bd916e1.png?resizew=159)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02f42ac4613fce3d7a400125fc4ec8eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b01a7e5181a277ef179dc83f1aabec95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44072a6e77439bb9694763fd3011fc02.png)
您最近一年使用:0次
2023-04-16更新
|
381次组卷
|
2卷引用:江苏省南京市中华中学2022-2023学年高一下学期期中数学试题