首页
试卷库
试题库
当前位置:
X题卡
>
所有题目
>
题目详情
求x的值:33x+1·53x+1=152x+4
查看本题答案
包含此试题的试卷
教案备课库《》真题及答案
点击查看
你可能感兴趣的试题
现定义一种新运算※使得a※b=4ab1求4※7的值2求x※x+2※x-2※4=0中x的值3不论x是什
已知函数fx=asinx+bcosxa≠0x∈R.f=1fx的最大值是2.Ⅰ求ab的值Ⅱ先将fx的图
设fx=4x+4-x-a2x+2-x+a+2a为常数.1a=-2时求fx的最小值2求所有使fx的值域
若规定两数ab通过※运算得到4ab即a※b=4ab例如2※6=4×2×6=481求3※5的值2求x※
若规定两数ab通过运算*得4ab即a*b=4ab例如2*6=4×2×6=48.1求3*5的值2求x*
设fx是定义在-∞+∞上的奇函数且fx+2=-fx当0≤x≤1时fx=x.1求fπ的值2当-4≤x≤
设fx是-∞+∞上的奇函数fx+2=-fx当0≤x≤1时fx=x.1求fπ的值2当-4≤x≤4时求f
现定义一种新运算※使得a※b=4ab1求4※7的值2求x※x+2※x﹣2※4=0中x的值3不论x是什
设fx=loga1+x+loga3-xa>0a≠1且f1=2.1求a的值及fx的定义域.2求fx在区
已知函数y=Asinωx+φ+mA>0的最大值为4最小值为0最小正周期为直线x=是其图像的一条对称轴
函数fx=a为常数且函数的图象过点-121求a的值2求fx的反函数hx3若gx=4-x-2且gx=f
*是规定的一种运算法则:a*b=a2-B.①求5*-1的值②若3*x=2求x的值③若-4*x=2-x
1求函数fx=3x4-4x3-12x2+1在[-33]上的最大值最小值2求曲线的y=fx=x-3x2
已知函数fx=2·sincos-sinx+π.1求fx的最小正周期2若将fx的图象向右平移个单位得到
已知x-2y=2求[x2+y2-x+y2+2xx-y]÷4x的值
已知函数fx=a>0且a≠1.Ⅰ求fx的值域Ⅱ若fx在[﹣12]上的最大值为求a的值.
已知函数fx=2x+agx=x2+3.若g[fx]=x2+x+1求a的值.
若关于x的方程4x+2m=3x+1①和方程3x+2m=6x+1②的解相同解答下列问题1求m的值2求式
已知函数fx=1若a=-1时求函数fx的单调增区间2如果函数fx有最大值3求实数a的值.
已知函数fx=sinx+cosx2+cos2x.1求fx的最小正周期2求fx在区间上的最大值和最小值
热门试题
更多
水是生命之源万物之基是人类宝贵的自然资源我们每个人都要关心水爱护水节约用水.我国规定生活饮用水的水质必须达到下述四项指标a.不得呈现异色 b.不得有异味 c.应澄清透明 d.不得含有细菌和病毒.其中c指标可以通过①操作达到在实验进行该操作时的注意事项有答出一点即可②b指标可以利用③填物质名称达到
下面是钠元素和氯元素在元素周期表中的信息和3种粒子的结构示意图.请回答下列问题1钠元素的相对原子质量是2氯原子的核电荷数是钠原子与氯原子的最本质区别是3Na+的结构示意图是填字母
YoucanfindhundredsoffreecomedymoviesonlinesavingyoumoneyaswellasthetroubleofgoingouttorentaDVDorvisitamovietheater. Hulu'sFreeComedyMovies Huluhasthebestselectionoffreecomedymoviesthatyoucanwatchonlinerightnow.Youcanlookthroughnewlyaddedcomediesorthemostpopularonesfromtodaythisweekthismonthoralltime.HulualsohasahugecollectionoffunnyfreeTVshowsandmoviesavailablebutyou'IIhavetowatchadvertisementsplacedlikecommercialsthroughouttheshowsormoviesyouareviewing. FreeComediesatPopcornflix Popcornflixisalegalwebsitewhereyoucanwatchfull﹣lengthstreamingmoviesinboththeU.S.andCanada.You'IIseealotofactorsandactressesyouIIrecognizehereinsomemoviesyou'veheardofandsomeyouhaven't.YoudontneedtoregistersoyouIIbeenjoyingyourchosenmovieorTVshowinseconds.Howeverthisvideostreamingseniceisad﹣supportedsoyouwillhavetositthroughafewcommercialbreaksduringyourmovie. FreeComedyMoviesatTubiTV ThousandsoffreemoviesandFVshowsareavailablethroughTubiIVandthe'canallbeviewedonanumberofmobiledevicesinadditiontoacomputer.There'salsoawholesectionatTubiTVthat'sjustforcomedyvideos.Somemoviesrequireyoutologin进人toviewthembutregistrationisfreeandonlytakesafewmoments. ClassicCinemaOnline'sComedies DozensoffreeclassiccomediesareavailablefromClassicCinemaOnline.WhatreallymakesClassicClassicCinemauniquefromtherestisitsratherlargeselectionofsilentfilms.Whilethere'sonlyalargehandfulofmoviesatClassicCinemaOnlineifyouloveclassicandsilentmoviesyoureallyneedtocheckitout. 1WhatdoesHulu'sFreeComedyMoviesofferapartfromfreecomedymovies? A.Free﹣books. B.FunnyfreeTVshows. C.Sciencefiction. D.Actionmovies. 2WhatcanwelearnaboutFreeComediesatPopcornflix? A.Noregistrationisrequired. B.Itsmoviesareallpopular. C.Ithasawholesectionofcomedyvideos. D.Itsmoviescanbewatchedanywhere. 3WherecanpeoplewatchmoviesandTVshowsusingtheirmobiledevices? A.Hulu'sFreeComedyMovies. B.FreeComediesatPopcornflix. C.ClassicCinemaOnline'sComedies. D.FreeComedyMoviesatTubiTV. 4WhatmakesClassicCinemaOnline'sComediesstandoutfromtherest? A.Dozensoffreeclassiccomedies. B.Alargeselectionofsilentfilms. C.Ratherfinevideoquality. D.Thebestselectionofmovies.
Iwassoscarebythe news.
Ibeatschooljustnow.
Tenandthirtyis.
请回答下列与水有关的问题自来水厂净水过程中需加消毒剂.高铁酸钾K2FeO4是一种高效的消毒剂其中铁元素的化合价为
Wehearwithour.
据右图回答问题1右图操作的名称为下面的混合物可以通过此操作分离的是填序号①盐水和泥沙 ②铁钉和硫酸铜溶液③二氧化锰不溶于水与氯化钾溶液 ④硫酸铜溶液和硫酸亚铁溶液2若实验结束发现下面烧杯中的液体仍浑浊可能的原因为一条即可3有关此实验下面操作错误的是A.滤纸的边缘低于漏斗边缘 B.液面不要低于滤纸边缘C.玻璃棒要靠在三层滤纸一边 D.漏斗下端的管口要紧靠烧杯内壁E.用玻璃棒搅拌以加快过滤速度
Itwasfreezingcoldthatday.Atabout9001dropoffatthevisitorrenter.IintendedtoexploreTetonsNationalPark2I.HoweverIwastoldthattherewasnobus3traveltotheparkfromtownso1hadtoaskforalift. Minuteslateratruckstoppedbesidemet4driverofferedtotakemethere.Whenwecametothepark5enterhehandedoverhisparkpassandgotmeinforfree. 6coverinwhiteTetonsNationalParkwasattractiveonthatcoldwinterday.Thesunwasshininganditwas7completesilent.ThesilencewaslovelybutIhadtohopethatitwaspossibletocatch8ridehackintotown.AsafewpeoplepassemeattheparkinglotIaskediftheyhadanyroomintheircar9iftheywereheadinglotown.Sure!Comeoninwegotaspaceforyou!theyreplied. Iwasgrateful10theirkindnessandIwastaughtagainthatregardlessofwhereyouareintheworldbeautifullyunconventionalthingscananddohappen.
下列实验操作正确的是
能证明水的组成的实验的是①氢气在氧气中燃烧②电解水③过氧化氢分解④石蜡在氧气中燃烧A.①② B.①③ C.②③ D.③④
下列含碳物质属于氧化物的是A.C60 B.CH4 C.CaCO3 D.CO
如图所示的电路中小灯泡正常发光.若将小灯泡和电流表的位置对换则
依据过氧化氢的化学式H2O2进行下列计算1H2O2的相对分子质量是2H2O2中氢元素与氧元素质量比是3H2O2中氧元素的质量分数的计算式为434g过氧化氢中氧元素的质量是
请回答下列与水有关的问题.蔗糖在热水中溶解比在冷水中快用分子的相关知识解释.
认真分析下图回答有关问题1图A为钙元素在元素周期表中的部分信息由此可知①元素通常可分为金属元素非金属元素钙元素属于①②钙的相对原子质量为②2图B为钙原子的结构示意图分析后回答①x的数值为②钙原子在化学反应中容易电子③钙元素的化合价为3从电子得失角度分析C跟BD中的①相似D所表示的粒子符号是②4若原子核外的电子层数与元素所在周期表中的周期数相同则D应该排在元素周期表的第周期
Makingalifestylechangeischallengingespeciallywhenyouwanttotransformmanythingsatonce.Herearesometipstohelpyou ■Makeaplanthatyoucanstickto.Yourplanisamapthatwillguideyouonthisjourneyofchange.1Whenmakingyourplanbespecific.Wanttoexercisemore?Detailthetimeofdaywhenyoucantakewalksandhowlongyou'llwalk.Postyourplanwhereyou'llmostoftenseeitasareminder. ■Starlsamll.BreakdownyourgoalsintosmallBreakdownyourgoalsintosmallmanageablestepsIsyourlong﹣termgoaltolose20poundswithinthenextfivemonths?2Ifyou'sliketoeathealthierconsideragoalfortheweekreplacingdessertwithahealthieroptionlikefruitoryogurt.Attheendoftheweekyou'llweeksuccessfulknowingyouhavemetyourgoal. ■Changeonebehavioratatime.Replacingunhealthybehaviorswithhealthyonesrequirestime.3Toimproveyoursuccessfocusononegoalorchangeatatime.Asnewhealthybehaviorsbecomeahabittrytoaddanothergoalthatworkstowardtimeoverallchange. ■4Acceptinghelpfromthosewhocareaboutyouandwilllistenstrengthensyourcommitment.Ifyoufeelunabletomeetyourgoalsonyourownconsiderseekinghelpfromapsychologist.Psychologistsareuniquelytrainedtounderstandtheconnectionbetweenthemindandbodyaswellasthefactorsthatpromotebehaviorchange. ■Makingthechangesthatyouwanttakestimeandcommitmenthutyoucandoit.Justrememberthatnooneisperfect.Minormisstepsontheroadtoyourgoalsarenormalandokay.5 A.Bekindtoyourself. B.Askforsupport. C.Bedeterminedtorecoverandgetbackontrack. D.Youcaneventhinkofitasanadventure. E.Agoodweeklygoalwouldbetoloseonepoundaweek. F.You'vetriedbeforebutwithoutfeelingmuchsuccess. G.Manypeoplerunintoproblemswhentheytrytochangetoomuchtoofast.
Ihaveagood.Couldyouhelpme? A.workB.foodC.hairD.job
Differentpeoplestudy.Theyhavedifferentmethodsoflearning.
IclimbedMountTailastweekend.对划线部分提问 youlastweekend?
IsawsomeboystudentsbasketballwhenIpassedtheplayground.A.played B. playsC.playing D. toplay
EveryMarchthecountrycelebratestheaccomplishmentsofwomeninAmericanhistory.Eventhoughtheseaccomplishmentsgobackalongwaymostschoolsdidn'tstartfocusingonwomenpioneersandtheirachievementsuntilrecently.Todaymostcollegesofferclassesinwomen'shistoryandmostschoolsteachkidsaboutthemanycontributionswomenhavemadetoourcountry. OnMarch191911aGermanwomannamedClaraZetkinorganizedtheveryfirstInternationalWomen'sDay.InspiredbyAmericanworkingwomentheannualeventtookonthecausesofpeaceandwomen'srights.Inthe1960sthewomen'smovementcausedwomentowonderwhytheyweren'tincludedinthehistorybooks. Bythe1970smorefemalehistoriansbegantolookbackatthecontributionsofwomeninhistory.In1978aCaliforniaschooldistrictstartedWomen'sHistoryWeektopromotetheteachingofwomen'shistory.SchoolofficialspickedtheweekofMarch8toincludeInternationalWomen'sDay.Itwassopopularthatin1981Congresspassedalawmakingtheweekacelebrationfortheentirecountry.Theconceptofstudyingwomen'shistorj7continuedtogrowinpopularity.In1987agroupofwomenaskedCongresstoamplifythecelebration.ThatsameyearCongressdeclaredtheentiremonthofMarchNationalWomen'sHistoryMonths TodayschoolsandcommunitiesacrossthecountrycelebrateihemonthwithspeciallessonsandactivitiesdesignedtoteachthewayswomenhavehelpedshapetheU.S.Thewomenwhohaveworkedhardtomakewomen'sHistoryMontharealitywouldliketoseewomen'shistoryallyearnotjusteveryMarch.In1996theNationalWomen'sHistoryMuseumwasfounded.It'sanon﹣profitorganizationdevotedtopreservingandcelebratingthevariouscontributionsofwomeninhistory.TheorganizationisworkingwithCongresstoopenapermanentmuseumsiteinWashingtonD.C. 1Whatdoesthefirstparagraphimply? A.Women'sachievementsusedtobeignoredinAmerica. B.MorewomenpioneersareneededinAmerica﹣ C.Celebratingwomen'sachievementshasalonghistoryinAmerica. D.FewAmericanschoolspayattentiontowomenscontributions. 2AccordingtothetextInternationalWomen1sDay A.isheldeverysecondyear B.hasahistoryofoveracentury C.wasstartedbyanAmerican D.wasaproductofwomen'smovement 3WhichofthefollowingwordscanreplacetheunderlinedwordamplifyinParagraph3? A.organize B.support C.Expand D.protect 4WhatcanweknowabouttheNationalWomen^sHistoryMuseumfromthetext? A.Itwassetuplessthantwodecadesago. B.Itfocusesonwomen'shistoriccontributions. C.Itisanorganizationaimedatmakingprofits. D.IthasapermanentsiteinWashingtonD.C.
用适当的化学用语填空①硫酸铜②氯化钠中所含的阴离子③过氧化氢中氧元素的化合价为④二氧化碳中碳元素显+4价⑤碳酸钙⑥电解水的符号表达式⑦氢气燃烧的符号表达式
WangFengisasingerandZhouDongyuisan.
It'scold.Let'smakeafirekeepuswarm.
水是生命之源万物之基是人类宝贵的自然资源我们每个人都要关心水爱护水节约用水.水的用途广泛许多化学实验中用到水请你列举一例.
下列叙述正确的是
热门题库
更多
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
高一下学期数学
教案备课库
高一上学期数学
高一上学期化学
教案备课库
教案备课库
教案备课库
高一上学期物理
教案备课库
教案备课库
教案备课库