首页
试卷库
试题库
当前位置:
X题卡
>
所有题目
>
题目详情
设log34•log48•log8m=log416,则m的值是( )
查看本题答案
包含此试题的试卷
高一上学期数学《》真题及答案
点击查看
你可能感兴趣的试题
log34·log48·log8m=log416则m为
给出以下等式1logaM·logaN=logaM.+N.2logaM-logaN=logaM.-N.
阅读材料:一般地如果aa>0且a≠1的b次幂等于N那么数b叫做以a为底N.的对数记作logaN=B.
若log34·log48·log8m=log416则m=.
根据皮褶厚度可以推算人体密度
D=C-m× (log 皮褶厚度值 )
D=C+m× (log 皮褶厚度值 )
D=C× m×(log 皮褶厚度值 )
D=C÷ m×(log 皮褶厚度值 )
设a>1且m=logaa2+1n=logaa-1p=loga2a则mnp的大小关系为
n>m>p
m>p>n
m>n>p
p>m>n
阅读下列材料并解决后面的问题.材料一般地n个相同的因数相乘记为an.如23=8此时3叫做以2为底8的
设loga2=mloga3=n则a2m+n的值为________.
设abc为均不等于1的正实数则下列等式中恒成立的是
log
a
b·log
c
b=log
c
a
log
a
b·log
c
a=log
c
b
log
a
(bc)=log
a
b·log
a
c
log
a
(b+c)=log
a
b+log
a
c
设a>1且m=logaa2+1n=logaa-1p=loga2a则mnp的大小关系为
n>m>p
m>p>n
m>n>p
p>m>n
已知mn为正整数a>0且a≠1且logam+loga+loga++loga=logam+logan求
设1<a≤b≤c证明logab+logbc+logca≤logba+logcb+logac.
对于a>0a≠1下列说法中正确的是①若M.=N.则logaM=logaN②若logaM=logaN则
①②③④
①③
②④
②
在金属离子M与EDTA的配合平衡中其条件稳定常数与各种副反应系数的关系式应是
αM(L)=1+β1[L]2+β2[L]2+……+βn[L]n
logk’mY=logkmY-logαM-logαY+lgαmY
LogK’mY=logKmY-logαM-logαY
logk’mY=logkmY-logαy
log23·log34·log45·log56·log67·log78=
1
2
3
4
设loga3=mloga5=n.求a2m+n的值.
根据皮褶厚度可以推算人体密度
D=c-m×(log皮褶厚度值)
D=c+m×(log皮褶厚度值)
D=c×m×(log皮褶厚度值)
D=c÷m×(log皮褶厚度值)
根据皮褶厚度可以推算人体密度
D=c-m ×(log 皮褶厚度值 )
D=c+m × (log 皮褶厚度值 )
D=c × m×(log 皮褶厚度值 )
D=c ÷m×(log 皮褶厚度值 )
设log34·log48·log8m=log416则m的值为
9
18
27
已知0
热门试题
更多
三棱锥的棱长均为4顶点在同一球面上则该球的表面积为
Ifthechildrenfeeluwithstrangersparentsshouldencouragethemtospeakup.
函数fx=lnx+1﹣的零点所在的大致区间是
已知函数fx=x+5且fa=6则f﹣a=
Nowadaysmostofusliveabusylife.Whatdoyoudotokeepyourselfrelaxed?Besidesspendingtimewithfamilyhavingaglassofwinewithfriendsorreadingabookhowaboutahobby? PersonallyI'macollector.Ilikeblueandwhitepiecesbest﹣﹣﹣blueandwhiteanything!Platesjarsvasescupsbowls﹣﹣﹣Ilovethemall.Collectingitemsislikesomethingyoucan'tgetenoughof.Yougetoneandyouwanttohavemore. Ifindcollectingtobeafunandinspirational鼓舞人心的hobby.Inmanywaysit'slikeapuzzleI'mnevertiredofsolving.Ilookfornewpiecestoaddtomycollection.IcanoftenbefoundvisitingMarshell'slookingovertheirinexpensiveofferings.InfactIfoundoneofmyfavoritepiecesthere. I'vemixedinexpensivepiecesfromMarshell'swithmoreexpensivefinds.Alotoftimesit'sthepieceI'mnotlookingforthatfallsintomylapIfindawaytomakeitpartofmyblueandwhitefamily.WhatIloveaboutmycollectionisthatwhenIgetinspiredIcanmovethemaroundthehousemixandmatchandmakethingslookfreshandnew. EversinceIwasalittlegirlbluehasbeenmyfavoritecolor.IthinkIgotitfrommyauntinMexico.SomeofmyearliestmemoriesarevisitingherinMexicoandsittingonachairinherkitchenwhichhadblueandwhitetiles瓷砖fromthefloortotheceiling.Iwouldspendcountlesshoursadmiringallthebeautifulblueandwhiteplatesandshinybluetilesaroundherkitchen.OnceIhadahomeIbegantobuildmyownblueandwhitecollection. 32.Wecaninferthatinthewriter'sopinion. A.havingahobbycanhelpusrelax B.readingabookaloneisreallyboring C.keepingahobbyisnoteasyformostofpeople D.havingaglassofwinewithfriendsisnotagoodidea 33.WhatdoestheunderlinedsentenceinParagraph2probablymean? A.Collectingthingsrequiresalotofmoney. B.Peoplealwayswantmorethantheyneed. C.Onceyoustartcollectingthingsit'shardtostop. D.Peoplemaynotknowwhattheywanttocollect. 34.Ifsomethingfallsintoyourlapitmeansyou. A.havebeenlookingforitB.getitunexpectedly C.don'tknowwhatitisD.likeitverymuch 35.What'sthelastparagraphmainlyabout? A.Whenthewriterstartedcollectingthings. B.Whythewriterlikedheraunt'sthingssomuch. C.Whatkindofthingthewritercollectedfirst. D.Whenthewriterstartedlikingbluethings.
TouristscomefromaroundtheworldtoseethegiantpandasattheWolongNature保护区inSichuan.
Asback﹣to﹣schoolshoppingisunderwaytensofmillionsofcollegestudentshavebecomethebuyingforceintheexpandingshoppingmarketespeciallytheonlineone.Forexampleasenioruniversitystudent﹣﹣﹣﹣LiuYangrecentlyboughtanewiPhone6sfromane﹣shop.Ineedtobepreparedforthenewlife.Andabrandnewsmartphonewillbeausefultoolformynextjourneylikelookingforjobssaidthe22﹣year﹣oldLiu. Asanactiveparticipantintheback﹣to﹣schoolshoppingseasonsomee﹣commerceplatformshavebecomethemainbattlefieldforonlineshopping.Oneplatformlaunchedaone﹣monthpromotionalfestivalincludingcellphonesdigitalproductscomputerofficesuppliesbooksaudioandvideoproductsplusitemsfortravelanddailylife.Otheronlineplatformsalsoofferpromotionalactivitiessuchasprovidingdiscounts折扣orfreemaintenanceforthepurchasedgoods. Accordingtooneplatform'sstatisticsduringits618onlineshoppingfestivalthenumberofboughtgoodsbycollegestudentsonitse﹣shopgrewby300%fromlastyear.Thedatashowthatcollegestudentsprefertobuythingsinthecategoriesofbeautyandhealthfoodanddrinkscomputerofficesuppliesbooksandmobilephones. XiangLigangtelecomexpertandCEOoftheindustrywebsitecctime.Comsaidthatthenexttwomonthsarepeakseasonsforsalesandthetotalsalesforcellphonesandcomputerswillgrowhigherduringthattimeduetotheback﹣to﹣schoolspending. 24.WhydoesLiuYangbuyaniPhonefromonlineplatform? A.Becausesheexpectstoshowheradvantageoverothers B.Becauseshewantstobebetterpreparedforthefuturelife. C.Becauseshewishestosavemoneyforthecomingterm. D.Becauseshedesirestoincreasetheonlineshoppingmarket. 25.Whatcan'tbeboughtinthispromotionalfestival? A.ConcertticketsB.BooksC.iPhonesD.Videoproducts 26.AccordingtoParagraph3ifthenumberofboughtgoodsbycollegestudentswas26000lastyearwhatisthefigureofthisyear? A.130000B.104000C.180000D.208000 27.Whatisthemainideaofthispassage? A.OnlineshoppingfestivalB.Anewwayoflifeisontheway C.ChallengesforcollegestudentsD.Schoolreturnleadstoshoppingincrease.
如图在三棱柱ABC﹣A1B1C1中AC=BCAA1⊥底面ABCD是线段AB的中点E是线段A1B1上任意一点B1C∩BC1=O. 1求证CD⊥平面ABB1A1 2求证OD∥平面AC1E.
若函数有最大值则a的取值范围为
10分rarerisecriticallysympatheticcoversoundly morethanturnaroundsetupnosoonersettledownpickup 1.DebbieHartisgoingtoswimacrosstheEnglishChannelandshehopestoanewworldrecord. 2.Shelookedatitforamoment.It'sallrightshesaidbutisn'titupsidedown? 3.Theirsleepingbagswerewarmandcomfortablesotheyallslept. 4.JasperWhiteisoneofthosepeoplewhobelieveinancientmyths. 5.Iandlookedangrilyatthemanandthewomansittingbehindme. 6.Thensheswamtotheshoreafterspendingthewholenightinthewater.Duringthattimesheadistanceofeightmiles. 7.Thesnakeoutofthebasketandbegantofollowthemovementsofthepipe. 8.Themanagerwasbuthecoulddonothingaboutit. 9.Hehadreturnedthanheboughtahouseandwenttolivethere. 10.HehadoftendreamedofretiringinEnglandandhadplannedtointhecountry.
如图是一几何体的平面展开图其中ABCD为正方形EF分别为PAPD的中点在此几何体中给出下面四个结论 ①直线BE与直线CF异面 ②直线BE与直线AF异面 ③直线EF∥平面PBC ④平面BCE⊥平面PAD 其中正确的是.
我市2016年各月的最高气温°C数据的茎叶图如图所示则这组数据中的中位数是
一个几何体的三视图及部分数据如图所示正视图侧视图和俯视图都是等腰直角三角形则该几何体的体积为
Asthelast目击者ofthe1800stheworld'soldestlivingpersoncelebrated117thbirthdayinItaly.
已知a>0b>0.证明 1 2.
设△ABC的内角ABC的对边分别为abc. 1若△ABC的面积为求c 2若求2c﹣a的取值范围.
若函数fx=kx﹣lnx在区间1+∞上为单调增函数则k的取值范围是.
已知角θ的顶点与原点重合始边与x轴的非负半轴重合终边在直线y=2x上则sin2θ等于
设函数已知曲线y=fx在x=0处的切线l方程为y=kx+b且k≥b. 1求m的取值范围 2当x≥﹣2时fx≥0求m的最大值.
EveryFridayIgotoCantataAdultLifeServicealocalretirementcommunitywithmyclassmatestodocommunityservice. Ourvisitslastaboutanhourplayinggamesandcardswiththepeople41wearethere. YoucanwatchallthemoviesandTVshowsyouwantaboutlifebackthenbutnothing42withtalkingtothepeoplewhowereactuallythere.Justhearingtheirstorieshas43meinawayIneverthoughtpossible. Whetheritwastalkingto98﹣year﹣oldHurricaneHildaaboutherglorydays44 arollerskaterorchattingwithLouaboutthetimesshedancedwithafamousactorIwascompletelyimpressedbyeverysingle45thepeoplewantedtosharewithme. Eventhepeoplewhodon'thave46memoriesmaketheexperiencecolorful.IremembervisitingMrs.Robinson.Shecouldn't47muchaboutherpastbutshetoldmeshe'd48forgethowkindIwasjusttolistentoher.Itmademerealizethatitisthe49thingsthatmakelifeworthliving.ThatissomethingIwon't50anytime. IfthereisonethingIhaverealizedinmythreeyearsofvisitingCantataitis51 ﹣﹣﹣﹣﹣justbeingthere﹣﹣﹣﹣thatmeansmorethananythingtomanyofthepeople.Anddespitehow52ourlivesarethereisalwaystimetomakethemhappy. Formeitfeelsgreattobea53ofhappinessasmileonabaddayoran54 foroldmemories.Andattheendofthedaythatisallthat55. It'seasytofeellikeyoudon'thavemuchincommonwiththe56﹣﹣especiallywhenyouarean57.Butthatisnottrueatall. Ihatetomakemuchcommentherebutagereallyisjustan58.Asyoungadultsitisimportantforustorealizethissooner59later.Wecanlearnalotfromtheelderlyandtheycanoften60fromteenagerstoo. 41.A.until B.unless C.while D.before 42.A.compares B.complete C.combines D.connects 43.A.touched B.reached C.pretended D.understood 44.A.like B.as C.about D.towards 45.A.imagination B.truth C.picture D.memory 46.A.boring B.depressing C.amazing D.tiring 47.A.concern B.take C.recall D.mention 48.A.ever B.always C.even D.never 49.A.important B.little C.major D.sweet 50.A.care B.skip C.believe D.forget 51.A.presence B.apology C.understanding D.protection 52.Amessy B.happy C.easy D.busy 53.A.risk B.chance C.source D.cause 54.A.mind B.ear C.tongue D.heart 55.A.matters B.favors C.differs D.exists 56.A.friendly B.lively C.lonely D.elderly 57.A.adult B.teenager C.people D.child 58.A.amount B.difference C.advantage D.number 59.A.orelse B.ratherthan C.otherthan D.exceptfor 60.A.hear Bdiffer C.judge D.benefit
已知fx=ax2+bx+3a+b是偶函数且其定义域为[a﹣12a]则y=fx的值域为.
The﹩70sneakerswereagiftfromhispoormotherwhohadsavedupformonthsandboughtthemata60percent折扣.
将函数y=sin2x+φ的图象向右平移个周期后所得图象关于y轴对称则φ的最小正值是
Hundredsofsmallcompanieshavebeensupbytheselargeonesinrecentyears.
函数的定义域为
已知函数. 1求fx的定义域及最小正周期 2求fx在上的单调递增区间.
定义在R上的奇函数fx满足f=0且在0+∞上单调递减则xfx>0的解集为
复数=
在区间[﹣23]上随机选取一个数X则X≤1的概率为.
函数的零点所在区间是
热门题库
更多
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
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