- 问题详情:如图,四边形OABC是矩形,点A、C在坐标轴上,B点坐标(-2,4)△ODE是△OCB绕点O顺时针旋转90°得到的,点D在x轴上,直线BD交y轴于点F,交OE于点H.(1)求直线BD的解析式;(2)求△BCF的面积;(3)点M在坐标轴上,平面内是否存在点N,使以点D、F、M、N为顶点的四边形是矩形?若存在,请求出点N的...
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- Student:OdetoJoy?"SymphonyNo.9"and"OdetoJoy"chorusistakenfromSchiller'spoem"OdetoJoy.Thechoruswassinging"TheOdetoJoy."Withthatbeingsaid,OdetoJoydoesn'tlackcreativity.Yes,thesefeaturescanbeseeninthecharactersofOdetoJoy.PossiblyBeethoven'sgre...
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- 问题详情:设O为坐标原点,直线与双曲线C:(a>0,b>0)的两条渐近线分别交于D,E两点,若∆ODE的面积为8,则C的焦距的最小值为A.4B.8C.16D.32【回答】B知识点:高考试题题型:选择题...
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- 问题详情:如图,在平面直角坐标系中,点B、C、E在y轴上,Rt△ABC经过变换得到Rt△ODE,若点C的坐标为(0,1),AC=2,则这种变换可以是()A.△ABC绕点C顺时针旋转90°,再向下平移3个单位长度B.△ABC绕点C顺时针旋转90°,再向下平移1个单位长度C.△ABC绕点C逆时针旋转90°,再向下平移1个单位长度D....
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- 问题详情:如图,点O在直线AB上,OC⊥AB,△ODE中,∠ODE=90°,∠EOD=60°,先将△ODE一边OE与OC重合,然后绕点O顺时针方向旋转,当OE与OB重合时停止旋转.(1)当OD在OA与OC之间,且∠COD=20°时,则∠AOE=______;(2)试探索:在△ODE旋转过程中,∠AOD与∠COE大小的差是否发生变化?若不变,请求出这个差值;若...
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- Theperformersofachoralode,especiallyaPindaricode.onesectionofalyricpoemorchoralodeinclassicalGreekdrama....
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- lineoutputpent(ode)Theperformersofachoralode,especiallyaPindaricode.OforcharacteristicofaPindaricode.NarrativeModeof“OdeofCchibi”andChineseTraditionalCulture;therecitationofaballad,anode,etcodesungbythechorusinclassicalGreekdrama.Anodetolivelycampu...
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