首页
试卷库
试题库
当前位置:
X题卡
>
所有题目
>
题目详情
在直角坐标系xOy中,曲线C1的参数方程为,(φ为参数).以原点O为极点,x轴正半轴为极轴建立极坐标系,曲线C2的极坐标方程为ρ=4sinθ.(1)求曲线C1的普通方程和C2的直角坐标方程;(2)已...
查看本题答案
包含此试题的试卷
高二下学期数学《》真题及答案
点击查看
你可能感兴趣的试题
在直角坐标系xOy中已知曲线C的参数方程是θ是参数若以O为极点x轴的正半轴为极轴取与直角坐标系中相同
在直角坐标系xOy中以原点O.为极点x轴的正半轴为极轴建立极坐标系.曲线C.1的参数方程为t为参数曲
选修4—4坐标系与参数方程 在直线坐标系xOy中曲线C1的参数方程为t为参数a>0在以坐标原点为极
在直角坐标系xOy中直线l的参数方程为t为参数在以O.为极点x轴的非负半轴为极轴建立的极坐标系中曲线
在直角坐标系xOy中曲线C.1的参数方程为α为参数在极坐标系与直角坐标系xOy取相同的长度单位且以原
选修4-4坐标系与参数方程 在直角坐标系xOy中曲线C1的参数方程为以坐标原点为极点以x轴的正半轴
选修4—4坐标系与参数方程在平面直角坐标系xOy中已知曲线C.的参数方程为.以直角坐标系原点O.为极
在直角坐标系xOy中过点P.21的直线l的参数方程为t为参数以坐标原点为极点x轴正半轴为极轴建立极坐
选修4—4坐标系与参数方程 在直线坐标系xOy中曲线C1的参数方程为t为参数a>0在以坐标原点为极
选修4-4坐标系与参数方程在直角坐标系xOy中曲线C1的参数方程为α为参数以坐标原点为极点以x轴的正
在平面直角坐标系xOy中直线l的参数方程为t为参数曲线C.的参数方程为θ为参数.试求直线l和曲线C.
在直角坐标系xOy中曲线M.的参数方程为α为参数若以直角坐标系中的原点O.为极点x轴的正半轴为极轴建
在直角坐标系xOy中已知曲线C.的参数方程是是参数若以O.为极点x轴的正半轴为极轴则曲线C.的极坐标
选修4—4坐标系与参数方程在平面直角坐标系xOy中已知曲线C.的参数方程为.以直角坐标系原点O.为极
在平面直角坐标系xOy中直线l的参数方程为t为参数曲线C.的参数方程为θ为参数.试求直线l和曲线C.
在直角坐标系xOy中曲线C.的参数方程是θ∈[02π]θ为参数若以O.为极点x轴正半轴为极轴则曲线C
选修4—4坐标系与参数方程 在直线坐标系xOy中曲线C1的参数方程为α为参数以坐标原点为极点x轴正
在平面直角坐标系xOy中直线l的参数方程为t为参数曲线C.的参数方程为θ为参数试求直线l与曲线C.的
在平面直角坐标系xoy中已知曲线C.的参数方程为α为参数现以O.为极点x轴的正半轴为极轴建立极坐标系
在直角坐标系xOy中以原点O.为极点x轴的正半轴为极轴建立极坐标系.曲线C.1的参数方程为t为参数曲
热门试题
更多
已知函数y=ax3+bx2当x=1时有极大值3. 1求ab的值. 2求函数的极小值. 3求函数在[-12]的最值.
真空中有两个点电荷它们之间的相互作用力为F若将每个点电荷的电荷量都增加一倍同时使它们之间的距离减半那么它们之间的相互作用力将变为
已知fx是定义在R上的减函数其导函数f′x满足+x<1则下列结论正确的是
RulesfortheUniversityEntranceExamination •Youmustbeattheexaminationcentertenminutesbeforetheexaminationstarts.Ifyouaremorethantenminuteslateyoumaynotentertheexaminationcenter.Theexaminationtakesplaceatthesametimeindifferentstates. •Youmusthaveproofofyournameandgradeaswellasofficialexaminationnumber.Showthesewhenyoucometotheexaminationcenter. •Dependingonwhichexaminationyouaretakingyoumaybringcertainitemsintotheexaminationcenter.Mathematicsexaminationsmayallowyoutouseelectroniccalculators.Othersubjectsmayallowyoutousedictionariesandotherreferencematerial.Pleasereadthenotessentwithyourtimetablecarefully. •Youmustbringyourownpencils.Nonewillbeprovidedforyou.Thefollowingitemsarenotallowedintheexaminationcenterwalk﹣mansandradiosheadsetsanyfoodordrinkschoolbagselectronicequipmentunlessspecificallypermittedforvarioussubjectsandmobilephones. •Onceinthecenteryoumustsitatthedeskwithyourexaminationnumberonit.Whenyousitdownplaceyourexaminationnumberatthetopcornerofyourdesk. •Youmustremainsilentduringtheexamination.Youmustnotdisturbotherpeoplewhoaretakingthetest. •Ifyouneedadrinkortoiletbreakyoushouldraiseyourhandandwaitforthesupervisor监督者tospeaktoyou.Youwillbegivenwaterorthesupervisorwilltakeyoutothebathroom.Youarenotallowedtotalkwithanyoneduringthebreak. •Youmustwriteyouranswersintheofficialanswersheet.Yoursupervisorwillprovideextrapaperifyouwishtomakenotes. •Youmayleavetheexaminationroomatanytimeifyoudonotplantoreturn.Ifyoufinishearlyandwanttoleavepleasemovewellawayfromtheexaminationcenter. •Thesupervisorwillwarnyoufifteenminutesfiveminutesandoneminutebeforetheendoftheexamination.Whenthesupervisorsaysthatthetimeisupyoumustputdownyourpencilandwaitatyourdeskuntilyourpaperiscollected. 1Whatareyouallowedtohavewithyouwhenyoutakemathematicsexamination? A.Relatedmaterial. B.Proofofyourself. C.Acellphone. D.Adictionary. 2Whatshouldyoudoifyoufinishthetestearly? A.Stayintheexaminationcenter. B.Remaininyourseatandcheckagain. C.Keepadistancefromthecenter. D.Raiseyourhandtoinformyourteacher. 3Whatcanbeprovidedforyouduringtheexam? A.Pencils. B.Foodanddrink. C.Extrapaper. D.Calculators.
设极坐标系的极点与直角坐标系的原点重合极轴与x轴的非负半轴重合.直线C1t为参数曲线C2ρ2-2ρcosθ-8=0. Ⅰ求曲线C2的直角坐标方程 Ⅱ直线C1与曲线C2交相交于AB两点求AB中点M的轨迹的普通方程.
已知fx是定义在R上的减函数其导函数f′x满足+x<1则下列结论正确的是
假如你是李华最近你从报纸上看到一家涉外酒店招聘暑期兼职工的广告请你根据下列要点提示写一封应聘信. 1.李华女18岁身体健康. 2.擅长英语口语流利. 3.性格外向交际能力强. 注意 1.词数100左右. 2.书信格式已经给出不计入总词数. 3.可以适当拓展. DearSirorMadame Yours LiHua.
通电线圈在磁场中受到安培力作用会发生扭转下列器件或设备中根据这个原理设计和工作的是
设a=0.32b=20.3c=log20.3则abc的大小关系为
已知定义在区间-11上的函数为奇函数. 1求函数fx的解析式并判断函数fx在区间-11上的单调性 2解关于t的不等式ft-1+ft<0.
已知函数y=ax3+bx2当x=1时有极大值3. 1求ab的值. 2求函数的极小值. 3求函数在[-12]的最值.
关于磁感线下列说法中正确的是
函数fx=lnx2+1的图象大致是
AnExtensionoftheHumanBrain Otherpeoplecanhelpuscompensateforourmentalandemotionaldeficiencies欠缺muchasawoodenlegcancompensateforaphysicaldeficiency.Tobeexactotherpeoplecanextendourintelligenceandhelpusunderstandandadjustouremotions.WhenanotherpersonhelpsusinsuchwaysheorsheisparticipatinginwhatI'vecalledasocialprosthetic义肢的system.Suchsystemsdonotneedtooperateface﹣to﹣faceandit'scleartomethattheInternetisexpandingtherangeofmyownsocialprostheticsystems.It'salreadyabigbankofmanyminds.EveninitscurrentstatetheInternethasextendedmymemoryandjudgment. RegardingmemoryOnceIlookupsomethingontheInternetIdon'tneedtokeepallthedetailsforfutureuse﹣Iknowwheretofindthatinformationagainandcanquicklyandeasilydoso.MoregenerallytheInternetfunctionsasifitweremymemory.ThisfunctionoftheInternetisparticularlystrikingwhenI'mwritingI'mnolongercomfortablewritingifI'mnotconnectedtotheInternet.It'sbecomenaturaltocheckfactsasIwritetakingaminuteortwotodipintoPubMedWikipediaorotherwebsites. RegardingjudgmentTheInternethasmademesmarterinmatterssmallandlarge.ForexamplewhenI'mwritingatextbookithasbecomesecondnaturetocheckadozendefinitionsofakeytermwhichhelpsmedigintothecoreandunderstanditsmeaning.ButmorethanthatInowregularlycomparemyviewswiththoseofmanyothers.IfIhaveanewideaInowquicklylooktoseewhethersomebodyelsehasalreadythoughtofitorsomethingsimilar﹣andIthencomparewhatIthinkwithwhatothershavethought.Thiscertainlymakesmyownviewsclearer.MoreoverIcanfindoutwhethermyreactionstoaneventarereasonableenoughbyreadingaboutthoseofothersontheInternet. TheseeffectsoftheInternethavebecomeevenmorestrikingsinceI'vebegunusingasmartphone.Inowregularlypulloutmyphonetocheckafactwatchavideoreadweibo.Suchactivitiesfillthespacesthatusedtobedeadtimesuchaswaitingforsomebodytoarriveforalunchmeeting. Butthat'stheupside好处.ThedownsideisthatinthosedeadperiodsIoftenwouldletmythoughtsflowandsometimeswouldhaveanunexpectedinsightoridea.Thoseopportunitiesarenowfewerandfartherbetween. AnExtensionoftheHumanBrain Aprostheticnature ●The1canhelpmakeupforourmentalandemotionaldeficienciesasawoodenlegcancompensateforabodilydeficiency. ●It2inourdailyeventsextendingourintelligencecomprehendingourfeelingsandexpandingtherangeofsocialactivities. Wonderfulaspectsmemoryandjudgment ●OntheInternetwecouldquicklyandeasilylocatethedetailsandcheckfactswithout3theminmind. ●TheInternetmakesussmarterover4kindsofthings.Itprovidesadozendefinitionsofakeytermforustofindthe5ofthematter. ●TheInternetenablesustoexchangeideaswithmanyothersto6ourclaimsandto7ouractions. The9sidesofsmartphones ●Smartphonesmakeiteasierandmore8tocheckrealitywatchvideoclipsreadweibo. ●Smartphones10thepossibilityfornewandinsightfulmindsandstealawayourdeadtime.
Doctorssayangercanbeanextremelydamagingemotionunlessyoulearnhowtodealwithit.Theywarnthatangercanleadtoheartdiseasestomachproblemsheadachesemotionalproblemsandpossiblycancer. 1Somepeopleexpressangeropenlyinacalmreasonableway.Othersburstwithangerscreamandyell.Butotherpeoplekeeptheirangerinside.Theycannotorwillnotexpressit.Thisiscalledrepressinganger. Foryearsmanydoctorsthinkthatrepressingangerismoredangeroustoaperson'shealththanexpressingit.Theysaythatwhenapersonisangrythebrainreleasesthesamehormones荷尔蒙.Theyspeedtheheartrateraisebloodpressureorsugarintothebloodetc.2 Somedoctorssaythatbothrepressingandexpressingangercanbedangerous.Theybelievethatthosewhoexpressangerviolentlymaybemorelikelytodevelopheartdiseaseandtheybelievethatthosewhokeepangerinsidemayfaceagreaterdangerofhighbloodpressure. 3Theysaythefirststepistoadmitthatyouareangryandtorecognizetherealcauseoftheangerthendecideifthecauseisseriousenoughtogetangryabout.Ifitistheysay4Waituntilyourangerhascooleddownandyouareabletoexpressyourselfcalmlyandreasonably. Doctorssaythatagoodwaytodealwithangeristofindhumorinthesituationthathasmadeyouangry.5 A.Ingeneralthepeoplefeelexcitedandreadytoact. B.Theysaythatlaughterismuchhealthierthananger. C.Expressingangerviolentlyismoreharmfulthanrepressingit. D.Angermaycauseyouacancer. E.Donotexpressyourangerwhileyouareangry. F.Angerisanormalemotionthatweallfeelfromtimetotime. G.Doctorssaythesolutionistolearntodealwithanger.
函数在上的最大值是
设极坐标系的极点与直角坐标系的原点重合极轴与x轴的非负半轴重合.直线C1t为参数曲线C2ρ2-2ρcosθ-8=0. Ⅰ求曲线C2的直角坐标方程 Ⅱ直线C1与曲线C2交相交于AB两点求AB中点M的轨迹的普通方程.
已知函数fx是定义在R上的奇函数对任意的x∈R都有fx+=fx-当x∈-时fx=1-x则f2017+f2019=
设a=0.32b=20.3c=log20.3则abc的大小关系为
已知函数fx是定义在R上的奇函数对任意的x∈R都有fx+=fx-当x∈-时fx=1-x则f2017+f2019=
已知幂函数fx=mxn的图象经过点216则m+n=.
一段东西方向放置的横截面积为0.05cm2的导电材料中每秒内有0.4C正电荷向东移动有0.6C负电荷向西移动则电流大小和方向是
已知函数fx=x2+2f′-x则f′-=.
函数fx=lnx2+1的图象大致是
已知幂函数fx=mxn的图象经过点216则m+n=.
TherearestoriesabouttwoU.S.presidentsAndrewJacksonandMartinVanBurenwhichattempttoexplaintheAmericanEnglishtermOK.Wedon'tknowifeitherstoryistruebuttheyarebothinteresting. ThefirstexplanationisbasedonthefactthatPresidentJacksonhadverylittleeducation.Infacthehaddifficultyreadingandwriting.WhenimportantpaperscametoJacksonhetriedtoreadthemandthenhadhisassistantsexplainwhattheysaid.Ifheapprovedofapaperhewouldwriteallcorrectonit.Theproblemwasthathedidn'tknowhowtospell.Sowhathereallywrotewasolkorekt.AfterawhileheshortenedthattermtoOK. ThesecondexplanationisbasedontheplacewherePresidentVanBurenwasbornKinderhookNewYork.VanBnren'sfriendsorganizedaclubtohelphimbecomePresidentTheycanedtheclubtheOldKinderhookClubandanyonewhosupportedVanBurenwascalledOK. 1Theauthor. A.believesbothofthestories B.doesn'tbelieveawordofthestories C.isnotsurewhetherthestoriesaretrue D.istellingthestoriesjustforfun 2AccordingtothepassagePresidentJackson. A.couldn'tdrawupanydocumentsatall B.didn'tliketoreadimportantpapersbyhimself C.oftenhadhisassistantssigndocumentsforhim D.wasn'tgoodatreadingwritingorspelling 3AccordingtothefirststorythetermOK. A.wasapprovedofbyPresidentJackson B.wasthetitleofsomeOfficialdocuments C.wasfirstusedbyPresidentJackson D.wasanoldwaytospellallcorrect 4AccordingtothesecondstorythetermOKwasfirstused. A.byVanBuren B.inapresidentialelection C.toorganizetheOldKinderhookClub D.bythemembersoftheOldKinderhookClub
已知函数fx=x2+2f′-x则f′-=.
若集合A={0123}B={124}C=A∩B则C的子集共有
电场中有一点P下列说法正确的是
已知定义在区间-11上的函数为奇函数. 1求函数fx的解析式并判断函数fx在区间-11上的单调性 2解关于t的不等式ft-1+ft<0.
热门题库
更多
高二下学期数学
高二上学期化学
高二下学期物理
高三下学期物理
高三上学期物理
高三上学期生物
高三上学期化学
高二下学期化学
高二下学期生物
高三下学期生物
高三下学期化学
高三上学期英语
高二下学期英语
教案备课库
高三下学期英语
教案备课库