名校
1 . 在
中,“
”是“
为锐角三角形” 的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5aab12c40441153db932ae4149e5547.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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
2 . 设
是
内一点,且
,定义
,其中
分别是
的面积,若
,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f58ff77bc49f127a27e0af56573944c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/801d50da9a58b1b1d48141e6ad01c1cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b511bcbe94aa484c0a067891fbf7968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d201ead127c65cc0bc153fdb445e420.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf4d96a8d81b2cd450bd92e7a9ec791f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f257b71e2b7886aadf7f1ebc809c10b1.png)
A.![]() | B.18 | C.16 | D.9 |
您最近一年使用:0次
2024-06-11更新
|
400次组卷
|
4卷引用:福建省三明市六校2023-2024学年高一下学期期中联考数学试卷
福建省三明市六校2023-2024学年高一下学期期中联考数学试卷四川省南充市南部中学2023-2024学年高一下学期第二次月考数学试题(已下线)核心考点2 平面向量的数量积 B提升卷 (高一期末考试必考的10大核心考点)(已下线)核心考点3 解三角形与实际应用 A基础卷 (高一期末考试必考的10大核心考点)
3 . 在锐角
中,角
的对边分别为
,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/c5ee25b7b5afe161b28be0760c123c1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9ac56d802afb2a331cabf9891321d6c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
4 . 在
中,角
、
、
的对边分别为
、
、
,若
,
,
的平分线
的长为
,则
边上的中线
的长等于( )
![](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/dcb5bac75f36bb1dc5c8190d4dbe681d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802099ec0bfb53f28b7a07467d57c9df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
5 . 在△ABC中,
,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/784d093b48df0ba4ae15ea1368fe85e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01a9d11c1fdda8f3bb2ef921bc75f816.png)
A.12 | B.6 | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
6 . 在直角梯形
中,
且
与
交于点
,则向量
在向量
上的投影向量为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ccf670663029e909e49d944bb95ca4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc82b2473d4295b1f6351c46b7f1fd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/083a20abb668d4c26fe5039bd108b40a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
7 . 下列说法正确的是( ).
A.单位向量均相等 |
B.向量![]() ![]() ![]() ![]() ![]() |
C.零向量与任意向量平行 |
D.若向量![]() ![]() ![]() ![]() |
您最近一年使用:0次
解题方法
8 . 已知双曲线
的左、右焦点分别为B,C,以BC为直径的圆与渐近线交与点A,连接AB与另一条渐近线交与点E,
为原点,
,且
.若
在
上的投影向量为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/888f3f66a185ab290254e17c251d63ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c916d5b02f278ee842393dab6dcce4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/083a20abb668d4c26fe5039bd108b40a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89265cbe3abc6b966ce8967fead448b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22c55b0570e6d6f6938c62d6a56abb09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca902cd1857b0b95703521972a4214eb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
9 . 在正六边形
中,向量
与
的夹角为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/304a7f07db2ec637baadf8f0ab91c85c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-04-11更新
|
224次组卷
|
3卷引用:辽宁省辽阳市集美中学2023-2024学年高一下学期4月月考数学试题
辽宁省辽阳市集美中学2023-2024学年高一下学期4月月考数学试题辽宁省部分高中2023-2024学年高一下学期4月联考数学试题(已下线)专题03 向量的数量积-期末考点大串讲(人教B版2019必修第三册)
名校
10 . 设
,
都是非零向量,下列四个条件中,能使
一定成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5601fd2c2649bef2b7c56d08b79a4572.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次