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时间:2019-10-02
《江苏省启东中学2018_2019学年高一数学暑假作业第二十七天向量的线性运算(含解析)苏教版》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、第二十七天 向量的线性运算1.向量加、减法要遵循三角形法则和平行四边形法则;2.平面向量共线定理和平面向量基本定理是处理向量问题的两个基本定理.1.如图所示,已知O是坐标原点,点A在第一象限,
2、O
3、=4,∠xOA=60°.求向量O的坐标._______________________________________________________________________________________________________________________________________________________________
4、______________________________________________________________________________________________________________________________________________________________________2.如图所示,▱ABCD的对角线AC和BD交于点M,A=a,A=b,试用基底a,b表示M,M,M和M._____________________________________________________________
5、________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________3.已知向量a=(1,0),
6、b=(2,1),当实数k为何值时,向量ka-b与a+3b平行?并确定此时它们是同向还是反向.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
7、_____________________________________________________________________________________________4.设e1,e2是平面内的一组基底,如果=3e1-2e2,=4e1+e2,=8e1-9e2,求证:A,B,D三点共线.______________________________________________________________________________________________________________________________
8、_______________________________________________________________________________________________________________________________________________________________________________________________________5.如图所示,△OAB中,C为线段AB上一点,A=λ(λ≠-1).求证:O=.________________________________________
9、______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
10、_______6.已知点O,A,B,C的坐标分别为(0,0),(3,4),(-1,2),(1,1),是否存在
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