首页
登录
职称英语
[img]ct_gre5image064[/img]In the rectangular coordinate system, segment OP is r
[img]ct_gre5image064[/img]In the rectangular coordinate system, segment OP is r
游客
2024-01-12
28
管理
问题
In the rectangular coordinate system, segment OP is rotated counterclockwise through an angle of 90° to position OQ (not shown).
Column A Column B
The x-coordinate of point Q -1
选项
A、if the quantity in Column A is greater
B、if the quantity in Column B is greater
C、if the two quantity are equal
D、if the relationship cannot be determined from the information given
答案
C
解析
在直角坐标系中,线段OP逆时针旋转90o到OQ(未画出)
解:本题的正确答案为(C)。由图可知,点P在逆时针旋转之前,位于第一象限,根据P点的坐标可以推知OP与x轴的夹角等于30o,逆时针旋转90o后,得到的Q点的坐标在第二象限,OQ与x轴的夹角等于30o。而线段OQ又与线段OP等长,所以Q点的纵坐标为-1
转载请注明原文地址:https://tihaiku.com/zcyy/3356271.html
相关试题推荐
Asustainabletransportationsystemisonethatissafe,capableandfriendl
Asustainabletransportationsystemisonethatissafe,capableandfriendl
Asustainabletransportationsystemisonethatissafe,capableandfriendl
Asustainabletransportationsystemisonethatissafe,capableandfriendl
Anewsystemofqualitycontrolwas______toovercometheshortcomingsinthef
Manythousandshavebenefited______thenewmedicalsystem.A、onB、inC、toD、from
Fromthenon,asoundsystemofPartyCommitteemeetingswas______inallleadi
________isthecenterofourplanetarysystemwasadifficultconcepttograsp
Intherectangularfigureabove,theareaoftheshadedregionisequaltothea
Intherectangularquadrantsystemshownabove,whichquadrant,ifany,contains
随机试题
(1)Menandwomentendtochoosedifferentcareerpaths,andresearchershav
Studentswouldrathertryonceagainthan(give)_______uptheplan.givewouldrath
Completethenotesbelow.WriteNOMORETHANTWOWORDSforeachanswer.CLIMATE
提供价值就是要()。A.确定产品 B.制订价格 C.分销产品 D.通过
某混凝土试块强度值不满足规范要求,但经法定检测单位对混凝土实体强度经过法定检测后
肾炎性水肿主要是由于 A.肾小球滤过率下降B.大量蛋白尿致血浆蛋白降低 C
1949年3月5日,( )在中国共产党第七届中央委员会第二次全体会议上说:“我
偿债能力的衡量方法有( )。A.比较可供偿债资产与债务的存量 B.比较短期债务
工程总承包企业投标报价决策时应准确估计成本,其成本费用应由()等组成。A.
下列建设工程项目进度控制的措施中,属于管理措施的有()。A.采用工程网络计划实现
最新回复
(
0
)