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
49
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
AdamWalden’sbestfriendishiscello-andthat’sjustfinewithhim.Like
[originaltext]M:Dear,Iamtiredout.W:Comeon.Ithasnotevenbeennoonye
Americanculturehasbeenenrichedbythevaluesandbeliefsystemsofvirtu
[originaltext]W:Ineedacarthisweekend,butminehasbrokendown.M:I’ms
治疗肾病综合征脾肾阳虚证,应首选A.真武汤合五苓散 B.大补阴丸合猪
注重调动社区内居民广泛参与社区事务的积极性、发扬社会主义民主的社区管理模式是(
Thechangeinthatvillagewasmiraculou
小明和小强参加同一次考试,如果小明答对的题目占题目总数的3/4,小强答对了27道
生命周期理论是由()创建的。A.F.莫迪利安尼 B.尤金法玛 C.R.
公安机关进行治安调解应当具备下列哪些条件?()A.引发违反治安管理行为的原
最新回复
(
0
)