如图,平行四边形
中,
,
为线段
的中点,
为线段
上的点且
.
![](https://img.xkw.com/dksih/QBM/2021/1/6/2630433051795456/2633092847009792/STEM/91fe81aa-e77f-4338-abac-ec816db79a2e.png?resizew=268)
(1)若
,求
的值;
(2)延长
、
交于点
,
在线段
上(包含端点),若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9afc299794bd812823bba2d4eafc693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa29fe6cd9eb51c184f6299d437375cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68d77d887bce805f9774301b642b18d1.png)
![](https://img.xkw.com/dksih/QBM/2021/1/6/2630433051795456/2633092847009792/STEM/91fe81aa-e77f-4338-abac-ec816db79a2e.png?resizew=268)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/937d5bb2da17321543de74a2e2b71b09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1adebff9fb726cd58eda1ef994890901.png)
(2)延长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ffc7d1af9053b027cf9e726f5367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a73a29b3bc238b7f2e85bd641d72305.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
20-21高一上·辽宁鞍山·期末 查看更多[7]
辽宁省鞍山市第一中学2020-2021学年高一上学期期末数学试题(已下线)黄金卷11-【赢在高考·黄金20卷】备战2021年高考数学全真模拟卷(江苏专用)辽宁省实验中学、大连市第二十四中学、鞍山市第一中学等名校2020-2021学年上学期高一数学联考试题(已下线)期中检测卷(基础卷)-2020-2021学年高一数学十分钟同步课堂专练(苏教版2019必修第二册)(已下线)专题9.3 向量基本定理及坐标表示(基础练)-2020-2021学年高一数学十分钟同步课堂专练(苏教版2019必修第二册)(已下线)专题22 平面向量的基本定理的应用-备战2022年高考数学一轮复习一网打尽之重点难点突破辽宁省沈阳市东北育才学校2022-2023学年高一上学期期末数学试题
更新时间:2021-01-10 13:44:01
|
【知识点】 利用平面向量基本定理求参数
相似题推荐
解答题-问答题
|
较易
(0.85)
【推荐1】如图,在平行四边形
中,
,
,
,
与
的夹角为
.
![](https://img.xkw.com/dksih/QBM/2019/5/7/2198552019968000/2198733530505216/STEM/49b74bbfd46541e5b017689b0237e32d.png?resizew=190)
(1)若
,求
、
的值;
(2)求
的值;
(3)求
与
的夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f6b76b84f59139b6b11f010498b2bbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/defad6a6cfa5b7909fba1ebca5f67d0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39578629334c22d60ee27f176e7dbff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bd98a891fa65f2fc6688001b03185d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://img.xkw.com/dksih/QBM/2019/5/7/2198552019968000/2198733530505216/STEM/49b74bbfd46541e5b017689b0237e32d.png?resizew=190)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63104f80571dbeaf95ce925e9cbaafe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3728d1c17bd92866025193c752121a7.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be64d59ac6538a0f4d79fb825e082081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f90e16e18b1e88ebb1ab811d06be76.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
解题方法
【推荐2】设
、
是不共线的非零向量,且
,
.
(1)证明:
、
可以作为一组基底;
(2)以
、
为基底,求向量
的分解式;
(3)若
,求
、
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41a724b7e1ff94bc42112bd470fb4441.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52359b7925483ee81170c7b1ec43356e.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
(2)以
![](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/c059ed2b09f35610cb6360070a10c90e.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46b466f1caf8fdf24ac770430ba4646d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
您最近一年使用:0次