EX的精选

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函数f(x)的图象向右平移1个单位长度,所得图象与曲线y=ex关于y轴对称,则f(x)=(  )A.ex+1 ...

函数f(x)的图象向右平移1个单位长度,所得图象与曲线y=ex关于y轴对称,则f(x)=(  )A.ex+1 ...

2021-02-14
问题详情:函数f(x)的图象向右平移1个单位长度,所得图象与曲线y=ex关于y轴对称,则f(x)=()A.ex+1                                B.ex-1C.e-x+1                       ...
设火箭发*失败的概率为0.01,若发*10次,其中失败的次数为X,则下列结论正确的是(  )A.E(X)=0....

设火箭发*失败的概率为0.01,若发*10次,其中失败的次数为X,则下列结论正确的是(  )A.E(X)=0....

2019-06-09
问题详情:设火箭发*失败的概率为0.01,若发*10次,其中失败的次数为X,则下列结论正确的是()A.E(X)=0.01B.P(X=k)=0.01k×0.9910-kC.D(X)=0.1D.P(X=k)=C×0.01k×0.9910-k【回答】D知识点:概率题型:选择题...
用“ex vivo”造句大全,ex vivo造句

用“ex vivo”造句大全,ex vivo造句

2024-01-07
1、Visualizationofσ_1receptorsineyesbyinvivopositronemissiontomographyandexvivoautoradiography2、Realtimeexvivodetectionanddynamicmonitoringofinvivoexpressionofsecretedluciferasegeneinjectedbyhydrody...
已知命题p:“∃x∈R,ex﹣x﹣1≤0”,则命题¬p(  )A.∀x∈R,ex﹣x﹣1>0 B.∀x∉R,e...

已知命题p:“∃x∈R,ex﹣x﹣1≤0”,则命题¬p(  )A.∀x∈R,ex﹣x﹣1>0 B.∀x∉R,e...

2020-12-20
问题详情:已知命题p:“∃x∈R,ex﹣x﹣1≤0”,则命题¬p()A.∀x∈R,ex﹣x﹣1>0 B.∀x∉R,ex﹣x﹣1>0C.∀x∈R,ex﹣x﹣1≥0 D.∃x∈R,ex﹣x﹣1>0【回答】A知识点:常用逻辑用语题型:选择题...
Thematchwas         andIfelt        .   A.exciting;  ex...

Thematchwas         andIfelt        .   A.exciting;  ex...

2021-10-09
问题详情:Thematchwas         andIfelt        .   ting;  excited                       ted;  exciting    ted;  excited               ...
函数y=(ex+e-x)的导数是(  )A.(ex-e-x)                     B.(e...

函数y=(ex+e-x)的导数是(  )A.(ex-e-x)                     B.(e...

2019-12-23
问题详情:函数y=(ex+e-x)的导数是()A.(ex-e-x)                     B.(ex+e-x)C.ex-e-x                        D.ex+e-x【回答】A[y′=(ex+e-x)′=(ex-e-x).]知识点:圆锥曲线与方程题型:选...
用“ex ante”造句大全,ex ante造句

用“ex ante”造句大全,ex ante造句

2018-07-31
Letusconsidertheexante,inadvanceofthethinkingandplan.Ingeneraljurisprudence,wemightassociatetheexanteperspectivewithlegalinstrumentalism(orlegalrealism).Inresponsetothis,smallholdershavedevelopedstrat...
Sleepinginisoneofthebestpartsoftheweekend.Afteralong,ex...

Sleepinginisoneofthebestpartsoftheweekend.Afteralong,ex...

2019-10-06
问题详情:Sleepinginisoneofthebestpartsoftheweekend.Afteralong,exhaustingworkweek,sometimesallyouwanttodoissleep.OnFridaynight,youslideunderthecovers,smilinginanticipation.Nowyoucanfinallycatchuponyours...
命题“∀x∈R,ex>0”的否定是    .

命题“∀x∈R,ex>0”的否定是    .

2020-09-30
问题详情:命题“∀x∈R,ex>0”的否定是  .【回答】 ∃x∈R,ex≤0.    知识点:常用逻辑用语题型:填空题...
用“ex officio”造句大全,ex officio造句

用“ex officio”造句大全,ex officio造句

2024-02-23
1、presentatthemeetingexofficio2、TheOfficeofaContractingPartyshallcorrectitsownmistakes,exofficiooruponrequest,fornofee.3、Sixofthe12membersrepresentemployers,andtheothersixrepresentemployees.TheComm...
设函数f(x)在(0,+∞)内可导,且f(ex)=x+ex,则f'(1)=    .

设函数f(x)在(0,+∞)内可导,且f(ex)=x+ex,则f'(1)=    .

2019-12-23
问题详情:设函数f(x)在(0,+∞)内可导,且f(ex)=x+ex,则f'(1)=.【回答】 2【解析】令ex=t,则x=lnt,t>0,所以f(x)=lnx+x,x>0,所以f'(x)=1+,则f'(1)=1+1=2.知识点:基本初等函数I题型:填空题...
函数y=-ex的图象(  )A.与y=ex的图象关于y轴对称B.与y=ex的图象关于坐标原点对称C.与y=e-...

函数y=-ex的图象(  )A.与y=ex的图象关于y轴对称B.与y=ex的图象关于坐标原点对称C.与y=e-...

2021-01-07
问题详情:函数y=-ex的图象()A.与y=ex的图象关于y轴对称B.与y=ex的图象关于坐标原点对称C.与y=e-x的图象关于y轴对称D.与y=e-x的图象关于坐标原点对称【回答】D知识点:基本初等函数I题型:选择题...
下列说法正确的是(  )A.“∀x∈R,ex>0”的否定是“∃x∈R,使ex>0”B.若x+y≠3(x,y∈R...

下列说法正确的是(  )A.“∀x∈R,ex>0”的否定是“∃x∈R,使ex>0”B.若x+y≠3(x,y∈R...

2021-12-27
问题详情:下列说法正确的是()A.“∀x∈R,ex>0”的否定是“∃x∈R,使ex>0”B.若x+y≠3(x,y∈R),则x≠2或y≠1C.“x2+2x≥ax(1≤x≤2)恒成立”等价于“(x2+2x)min≥(ax)max(1≤x≤2)”D.“若a=﹣1,则函数f(x)=ax2+2x﹣1只有一个零点”的逆命题为真命题...
Theconceptofsolitude(独处)inthedigitalworldisalmostnon-ex...

Theconceptofsolitude(独处)inthedigitalworldisalmostnon-ex...

2021-07-12
问题详情:Theconceptofsolitude(独处)inthedigitalworldisalmostnon-existent.Intheworldofdigitaltechnology,e-mail,socialnetworkingandonlinevideogames,informationismeanttobe__21__.Solitudecanbehardtodiscove...
命题:∀x∈R,ln(ex﹣1)<0的否定是(  )A.∀x∈R,ln(ex﹣1)>0     B.∀x∈R,...

命题:∀x∈R,ln(ex﹣1)<0的否定是(  )A.∀x∈R,ln(ex﹣1)>0     B.∀x∈R,...

2021-09-05
问题详情:命题:∀x∈R,ln(ex﹣1)<0的否定是()A.∀x∈R,ln(ex﹣1)>0     B.∀x∈R,ln(ex﹣1)≥0C.∃x∈R,ln(ex﹣1)<0     D.∃x∈R,ln(ex﹣1)≥0【回答】 D【考点】命题的否定.【分析】根据全称命题的否定是特称命题进行判断即可.【解答】解:命题...
已知函数f(x)=(x+a)ln(x+a),g(x)=﹣+ax.(1)函数h(x)=f(ex﹣a)+g'(ex...

已知函数f(x)=(x+a)ln(x+a),g(x)=﹣+ax.(1)函数h(x)=f(ex﹣a)+g'(ex...

2020-03-21
问题详情:已知函数f(x)=(x+a)ln(x+a),g(x)=﹣+ax.(1)函数h(x)=f(ex﹣a)+g'(ex),x∈,求函数h(x)的最小值;(2)对任意x∈上h'(x)≥0,h(x)递增,h(x)的最小值为.【回答】②当﹣1<a﹣1<1即0<a<2时,在x∈上h'(x)≤0,h(x)为减函数,在在x∈上h'(x)≥0,h(x)为增函数.∴h(x)的最小值为h(a﹣1)=﹣ea...
用“ex parte”造句大全,ex parte造句

用“ex parte”造句大全,ex parte造句

2016-11-01
incameraorexparteproceedings人红遭忌,小心暗器....笑的理由不多,但似乎还是拥有笑的能力。Theprohibitionsonexpartecontactscomeintoplaywhenaproceedinghasbeennoticedforhearing,unlesstheagencyhasdesignatedsome...
用“ex factory”造句大全,ex factory造句

用“ex factory”造句大全,ex factory造句

2017-09-18
"出厂价格,见exfactoryprice"Icanalsoconfirmthatbasedonquantitiesof20,000unitsormorethatapriceof5.50POUNDSexfactoryisavailablelessanextra10%discountforpaymentwithyourpurchaseorder....
用“ex”造句大全,ex造句

用“ex”造句大全,ex造句

2017-04-21
Brazilianmediasaidtheboy'sex-stepfatherwasdetained.Couldthiscraftyex-paratrooperpulloffanotherupset?Iguessedthathewasanex-serviceman.Afteradivorcetheex-husbandusuallygetscustodyofthechildrenandtheex-...
*命题“f(x)=ex+在(0,+∞)上是增函数”,一个同学给出的*法如下:∵f(x)=ex+,∴f′(x)...

*命题“f(x)=ex+在(0,+∞)上是增函数”,一个同学给出的*法如下:∵f(x)=ex+,∴f′(x)...

2020-03-09
问题详情:*命题“f(x)=ex+在(0,+∞)上是增函数”,一个同学给出的*法如下:∵f(x)=ex+,∴f′(x)=ex-.∵x>0,∴ex>1,0<<1,∴ex->0,即f′(x)>0,∴f(x)在(0,+∞)上是增函数.他使用的*方法是()A.综合法                 B.分析法...
—Thereisgoingtobeaconcertthisevening.        —       ex...

—Thereisgoingtobeaconcertthisevening.        —       ex...

2020-01-01
问题详情:—Thereisgoingtobeaconcertthisevening.        —       excitingnews!      an         an【回答】B知识点:感叹句题型:选择题...
已知f(x)=ex-e-x,g(x)=ex+e-x(e=2.71828…)(1)求[f(x)]2-[g(x)]...

已知f(x)=ex-e-x,g(x)=ex+e-x(e=2.71828…)(1)求[f(x)]2-[g(x)]...

2021-07-17
问题详情:已知f(x)=ex-e-x,g(x)=ex+e-x(e=2.71828…)(1)求[f(x)]2-[g(x)]2的值;(2)若f(x)f(y)=4,g(x)g(y)=8,求的值.【回答】解析(1)[f(x)]2-[g(x)]2=(ex-e-x)2-(ex+e-x)2=(e2x-2+e-2x)-(e2x+2+e-2x)=-4.(2)f(x)f(y)=(ex-e-x)(ey-e-y)=ex+y+e-x-y-ex-y-e-x+y=[ex+y+e-(x+y)]...
 Weallfeltvery         atthe         news.A.exciting;ex...

 Weallfeltvery         atthe         news.A.exciting;ex...

2019-08-06
问题详情: Weallfeltvery         atthe         news.A.exciting;excited   B.excited;excitingC.exciting;exciting  D.excited;excited【回答】B知识点:相似相近词比较题型:选择题...
 设函数f(x)在(0,+∞)内可导,且f(ex)=x+ex,则f′(1)=

 设函数f(x)在(0,+∞)内可导,且f(ex)=x+ex,则f′(1)=

2019-10-31
问题详情: 设函数f(x)在(0,+∞)内可导,且f(ex)=x+ex,则f′(1)=___________.【回答】2【解析】设ex=t,则x=lnt(t>0),∴f(t)=lnt+t,∴f′(t)=+1,∴f′(1)=2.知识点:导数及其应用题型:填空题...
已知f(x)=ex-e-x,g(x)=ex+e-x(e=2.718…).(1)则[f(x)]2-[g(x)]2...

已知f(x)=ex-e-x,g(x)=ex+e-x(e=2.718…).(1)则[f(x)]2-[g(x)]2...

2019-04-03
问题详情:已知f(x)=ex-e-x,g(x)=ex+e-x(e=2.718…).(1)则[f(x)]2-[g(x)]2的值为; (2)若f(x)·f(y)=4,g(x)·g(y)=8,则=. 【回答】(1)-4(2)3(1)[f(x)]2-[g(x)]2=[f(x)+g(x)][f(x)-g(x)]=[(ex-e-x)+(ex+e-x)][(ex-e-x)...