名校
1 . 已知
,
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69ec4842044af34866cff094bf36165a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b222cd241575a12f2ccc58217db3538a.png)
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
2023-05-19更新
|
496次组卷
|
2卷引用:广西柳州地区民族高级中学2022-2023学年高一下学期期中考试数学试题
名校
解题方法
2 . 在
中,已知
,
,
在线段
上,且
,
,设
,
.
,
表示
;
(2)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89f8c7c5dad20d1ac791b5aaad95c31b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fa0143e052243bb44d08d4c74f13433.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c54edefe2335191679f506893c0a1a69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf847c1830981614c22b4b0c6822f9e.png)
![](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/f7239b3f2d88c2e45e17e5de9ae1a332.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26fdd8e57562ba94e10e7f1d770826d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0128ac9baef3ad6abdcf1277e9f72dd.png)
您最近一年使用:0次
2023-05-12更新
|
713次组卷
|
10卷引用:广西河池市2021-2022学年高一下学期八校第二次联考数学试题
广西河池市2021-2022学年高一下学期八校第二次联考数学试题广西桂林市临桂区五通中学2021-2022学年高一下学期期中段考数学试题广西桂林市灵川县灵川中学2021-2022学年高一下学期期中考试数学试题四川省凉山彝族自治州西昌市2020-2021学年高一下学期期中数学(理)试题四川省凉山彝族自治州西昌市2020-2021学年高一下学期期中数学(文)试题(已下线)6.3.1平面向量基本定理(课件+作业)内蒙古自治区乌兰察布市衡水卓远中学2022-2023学年高一下学期期中数学试题广东省深圳市罗湖高级中学2022-2023学年高一下学期期中考试数学试题湖南省邵阳市邵东市湖南经纬实验学校2022-2023学年高一下学期3月月考数学试题山东省淄博中学2023-2024学年高一下学期4月月考数学试题
名校
解题方法
3 . 已知向量
,
.
(1)求
;
(2)已知
,且
,求向量
与向量
的夹角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b981b38133d5d65060dd8ff4d65a66be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ae2aa510118abdd58488d50c822e0ec.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/596a3ee5d8473fc6619ea7730e13325b.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f504a9833de7cfa473777762492d29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b03cde83b27a9876bf91d99dbd9e455.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a0b19e69be46452425916a0fcb49c9.png)
您最近一年使用:0次
2023-05-11更新
|
934次组卷
|
4卷引用:广西百色市2022-2023学年高一下学期数学期末考试模拟试题
4 . 已知
,
,
.
(1)若
,求x的值;
(2)求
的最值及取得最值时相应的x的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74819bd70578e0bd50b033841f1aebbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a866a111b64340e9859147a5a985bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ac075691407fc7a2eb3fcd3dc372d2d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02f7d08d10754ff3903d139768f40530.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7aa1233d7a93113281594c41f25c7db.png)
您最近一年使用:0次
解题方法
5 . 在
中,
,点
在线段
上,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/ff5a86745bfe1dfe7bc2683811210330.png)
![](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/ace0a67c09dc23959f1849724a999046.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eb3d1070981fed5ca65a34bb2282e6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-05-03更新
|
120次组卷
|
2卷引用:广西邕衡金卷2023届高三一轮复习诊断性联考数学(理)试题
解题方法
6 . 已知
,若点A、B的中点坐标为
,且
与
共线,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f99ce0fdd3a34df8d5e913b7b9f6f3fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c832f2474efe89961ef41e884da7660c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11f61978f9d1ed53aa49cf3cb7c1ac80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
您最近一年使用:0次
名校
7 . 如图,在
中,已知
,
,
,
,
,AM,BN相交于点P.设
,
.
,
表示
;
(2)求
,
夹角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57fdd2a3642716fcf5100011eb3ec88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f5bfe10c2b3ce7f103f0e21d9a7c372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6acb709a36f14162706225313b154704.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3adc4ed291596abf3bb93ae7a075d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cc03a3ba496faee748a8d63e5d4fa92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/350f162ee9aa08f4c9779481a5ef1025.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe6d728b430549f00bb9c0a7bf8bf7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/350f162ee9aa08f4c9779481a5ef1025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
您最近一年使用:0次
2023-04-26更新
|
955次组卷
|
5卷引用:广西桂林市平乐县平乐中学2022-2023学年高一下学期期中考试数学试题
8 . 已知函数
,其在一个周期内的图象分别与x轴、y轴交于点A、点B,并与过点A的直线相交于另外两点C、D.设O为坐标原点,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/1/ef6430fa-e413-4970-ae01-5cebafb3205e.png?resizew=202)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13cd48276787b1f4bf66fd53d1e34781.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29bf6d6750247b90ea217c172ae67628.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/1/ef6430fa-e413-4970-ae01-5cebafb3205e.png?resizew=202)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-04-26更新
|
1197次组卷
|
7卷引用:广西桂林市平乐县平乐中学2022-2023学年高一下学期期中考试数学试题
解题方法
9 . 在
内有两点
,
,满足
,
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44aa4045bdfad62809441d59206aa390.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0e5c16a29ec91876e79c29ba18c2525.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eeacf0b42c299fb2317d40ba78c7bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edff1881635893293dd411ead8194aca.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-04-26更新
|
633次组卷
|
3卷引用:广西百色市平果市铝城中学2023-2024学年高二上学期段考综合测试数学试题(二)
解题方法
10 . 记数列
的前n项和为
,已知向量
,
,若
,且
,则
通项为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1043d57d824b6f102d0f8898743d6128.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a0fc2a3440ca6c8c59a0c5b3a426479.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a53cdfd02f840f55c72dbb4d0607c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
您最近一年使用:0次