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基礎(chǔ)數(shù)學(xué)知到智慧樹章節(jié)測試課后答案2024年秋太原理工大學(xué)第一章單元測試
Let,,theexpressionofequals().
A:B:C:D:
答案:Supposethat
U=R,A=
,then().
A:B:C:D:
答案:AllpropersubsetsofA=are()
A:B:C:D:
答案:WeknowthatAisasetofoddnumbers,Bisasetofevennumbers,andZisasetofintegernumbers.Then=().
A:B:ZC:BD:A
答案:Judgewhichexpressioniscorrect().
A:B:C:D:
答案:Ifa>b
,thena-c>b-c
.()
A:對(duì)B:錯(cuò)
答案:對(duì)Ifa=2-
,,,then().
A:B:C:D:
答案:If,,,,then()
A:B:C:D:
答案:If
a<b<0
,c>0
,then()
A:B:C:D:
答案:Supposethat
30<x<42
,16<y<24
,thentherangeofvaluesofis().
A:(-6,10)B:(-18,-2)C:(-6,-2)D:(-18,10)
答案:(-18,10)
第二章單元測試
Thefunctionissameasthefunction
y=x
.()
A:對(duì)B:錯(cuò)
答案:錯(cuò)Thefunctionissameasthefunction.()
A:對(duì)B:錯(cuò)
答案:錯(cuò)Thedomainofis()
A:B:C:D:
答案:Whichfunctionisdecreasingon?()
A:B:C:D:
答案:isodd.()
A:錯(cuò)B:對(duì)
答案:對(duì)iseven.()
A:錯(cuò)B:對(duì)
答案:錯(cuò)Thegraphofissymmetricwithrespecttothey-axis.()
A:對(duì)B:錯(cuò)
答案:對(duì)Thegraphofissymmetrictothegraphofwithrespecttotheline.()
A:錯(cuò)B:對(duì)
答案:對(duì)Whichfunctionhasinversefunction?()
A:B:C:D:
答案:;Ifthen()
A:1B:7C:3D:8
答案:3Whichfunction’sdomainis?()
A:B:C:D:
答案:
第三章單元測試
Choosethetrue
statement.()
A:B:C:D:
答案:Giventhat()
A:12B:-1C:0.75D:9
答案:0.75Whichistruechoice?
A:B:C:D:
答案:Thedomainofthefunction,is()
A:B:C:D:
答案:Because,so.()
A:錯(cuò)B:對(duì)
答案:對(duì)Supposethat,.Thegraphofisareflectionofinthelineof.()
A:對(duì)B:錯(cuò)
答案:對(duì)If,thenx=
.()
A:對(duì)B:錯(cuò)
答案:錯(cuò)Therangeoftheinversefunctionofis.()
A:對(duì)B:錯(cuò)
答案:對(duì)
A:對(duì)B:錯(cuò)
答案:錯(cuò)
第四章單元測試
Ifαisthethirdquadrantangle,thequadrantofα/2is().
A:FirstorsecondquadrantB:SecondorthirdquadrantC:FirstorthirdquadrantD:Secondorfourthquadrant
答案:SecondorfourthquadrantAssumingthatsinθcosθ>0,thenθisin().
A:FirstandfourthquadrantsB:SecondandfourthquadrantsC:FirstandsecondquadrantsD:Firstandthirdquadrants
答案:Firstandthirdquadrantssin()cos()tan(-)=()
A:B:C:D:
答案:Ifsinα>sinβ,then,inthefollowingstatements,()istrue.
A:Assumingthatαandβarethefourthquadrantangles,thentanα>tanβB:Assumingthatαandβarethethirdquadrantangles,thencosα>cosβC:Assumingthatαandβarethefirstquadrantangles,thencosα>cosβ.D:Assumingthatαandβarethesecondquadrantangles,thentanα>tanβ
答案:Assumingthatαandβarethefourthquadrantangles,thentanα>tanβIfsinx+cosx=1/5(),thentanx=()
A:4/3B:-4/3C:3/4D:-3/4
答案:-4/3Thegraphoffunctionf(x)=4sin(2x+/3)issymmetricaboutthelinex=-()
A:錯(cuò)B:對(duì)
答案:錯(cuò)Thegraphoffunctionf(x)=4sin(2x+/3)issymmetricaboutthenode(-,0).()
A:錯(cuò)B:對(duì)
答案:對(duì)LetA={α|α=2k2/3,k},B={β|β=4k2/3,k},C={γ|γ=k2/3,k}.Then.()
A:對(duì)B:錯(cuò)
答案:對(duì)In(0,2),ifsinx>cosx,thenxisin(/4,).()
A:錯(cuò)B:對(duì)
答案:錯(cuò)Moveallverticesonthecurveofthefunctiony=sinx(x∈R)paralleltotheleftby/3,andthenshortenthehorizontalcoordinatesofallverticesontheresultingcurveto1/2oftheoriginal(theverticalcoordinateisunchanged).Thenweobtainthefunctiony=sin(2x+/3),()
A:錯(cuò)B:對(duì)
答案:對(duì)
第五章單元測試
Iftanθ+1/tanθ=2,thensinθ+cosθ=().
A:B:C:2D:
答案:Ifcos(α+β)=1andsinα=1/3,thenthevalueofsinβis().
A:B:C:D:
答案:Ifsinα+cosα=,thenthevalueoftanα+cotαis().
A:1B:-2C:D:2
答案:2Giventwoacuteanglesαandβ,ifcosα=3/5,tan(α-β)=-1/3,thenthevalueoftanβis().
A:9/13B:13/9C:1/3D:3
答案:3Ifsin(x-)=3/5,thenthevalueofsin2xis().
A:16/25B:-7/25C:7/25D:9/25
答案:7/25Iftanα=4,then.()
A:對(duì)B:錯(cuò)
答案:對(duì)Foranyα,β∈(0,),iftanα=(1+sinβ)/cosβ,then2α-β=.()
A:對(duì)B:錯(cuò)
答案:對(duì)If,thenthevalueofis2/5.()
A:錯(cuò)B:對(duì)
答案:對(duì)Foranyα∈(0,),if,thentanα=1/2.()
A:對(duì)B:錯(cuò)
答案:錯(cuò)Iff(x)=cos(/3+x)cos(/3-x)-sinxcosx+1/4,thentheminimalperiodis.()
A:對(duì)B:錯(cuò)
答案:對(duì)
第六章單元測試
Thefirstfourtermsofasequencearegiven:-4,7,-10,13,....Thegeneraltermformulaofthesequenceis()
A:B:C:D:
答案:Inthefollowingnumbers,threenumbersinwhichgroupisanarithmeticprogression?()
A:B:C:D:
答案:Forthearithmeticprogression,,,then()
A:B:C:D:
答案:Inthegeometricprogression,,,then()
A:B:C:D:
答案:;As,thelimitofthesequenceis()
A:B:2C:0D:1
答案:1Inthearithmeticprogression,,,then()
A:19B:17C:16D:15
答案:17Inthegeometricprogression,,,then()
A:32B:16C:8D:2
答案:16Supposethatthearithmeticprogressionsuchthat,,then.
()
A:錯(cuò)B:對(duì)
答案:對(duì)Asnbecomessufficientlylarge,thetermsofthesequenceapproach1.
()
A:對(duì)B:錯(cuò)
答案:錯(cuò)
A:錯(cuò)B:對(duì)
答案:錯(cuò)
第七章單元測試
If,whereandarerealnumbers,thenfindthevaluesofand.()
A:B:C:D:
答案:Expressintheformof.()
A:B:C:D:
答案:()
A:B:0C:1D:
答案:0Expressthegivenexpressionintheformandfindthevaluesofand.()
A:B:C:D:
答案:Findtherealvaluesofandsuchthat.()
A:,B:,C:,D:,
答案:,Writeintheformx+iy
of()
A:B:C:D:
答案:Writeintheformof()
A:B:1C:0D:
答案:Writeintheformof.()
A:B:C:D:
答案:Giveallroots(solutions)of.()
A:B:C:D:
答案:;Splitintofactors:()
A:B:C:D:
答案:
第八章單元測試
Thereare6studentsstandinginarowwith3boysand3girls.Iftheboysdonotstandattwoendpointsandonlytwogirlsareadjacentamongthe3girls,howmanydifferentarrangementsarethere?()
A:96B:288C:216D:360
答案:288Choose3outof5malesand4femalestoformasmallteamcontainingbothmalesandfemales.Howmanydifferentteamscanyoubuild?()
A:80B:140C:70D:100
答案:70AandBwillchoose2subjectsfrom4subjectsandAandBaredifferentinatleastonesubject.HowmanydifferentwaystochoosesubjectsforAandB?()
A:6B:30C:36D:12
答案:30Thesumofthecoefficientsintheexpansionofis2.Whatistheconstantterminthebinomialexpansion?()
A:-10B:10C:20D:-20
答案:10Whatistheconstantterminthebinomialexpansionof?()
A:120B:180C:50D:210
答案:2105studentssignuptoparticipateintwoextracurricularactivitygroups,andeachstudentislimitedjoinonegroup.Thereare32differentwaystosignup.()
A:錯(cuò)B:對(duì)
答案:對(duì)Ifthespellingorderoftheword'hello'isincorrect,theremaybe60typesofwritingerrors.()
A:對(duì)B:錯(cuò)
答案:錯(cuò)Usingonly1,2,and3toformafourdigitnumber,itisstipulatedthatthesethreenumbersmustbeusedsimultaneouslyandthesamenumbercannotappearadjacent.Thereare18suchfourdigits.()
A:對(duì)B:錯(cuò)
答案:對(duì)Thecoefficientofinthebinomialexpansionofis24.()
A:對(duì)B:錯(cuò)
答案:對(duì)Thecoefficientofinthebinomialexpansionofis20.()
A:對(duì)B:錯(cuò)
答案:錯(cuò)
第九章單元測試
Whatisthevectorwhereispointandispoint.()
A:B:C:D:
答案:Given,,.Find:.()
A:-3B:-2C:3D:2
答案:3Given,,.Find:.()
A:5B:6C:-6D:-5
答案:5Given,,.Find:theanglebetweenand.()
A:B:C:D:
答案:Vectorsandaredefinedintermsofandasand.()
If,findthevaluesofand.
A:,B:,C:,D:,
答案:,Isthatthevectorsandareperpendicular?()
A:對(duì)B:錯(cuò)
答案:對(duì)Ifand,findandtheanglebetweenand.()
A:,B:,C:,D:,
答案:,Let,,find.()
A:3B:4C:-4D:-3
答案:4Letbeastandard-positionvectorwithterminalpoint.Letbeavectorwithinitialpointandterminalpoint.Findthemagnitudeofvector.()
A:10B:15C:-10D:-15
答案:15Considervectors,,.Determinethescalarsandsuchthat.()
A:,B:,C:,D:,
答案:,
第十章單元測試
Astraightlinewithagradientofpassesthroughthepoint.Findtheequationoftheline.()
A:B:C:D:
答案:Thegraphisastraightline.Finditsgradient,andtheinterceptwiththe-axis.()
A:,2B:,2C:,-2D:,-2
答案:,2Findtheequationofthelinethatpassesthroughthepoint(1,2)andisperpendicularto.()
A:B:C:D:
答案:Writeanequationforthelinepassingthrougheachofpoints.()
A:B:C:D:
答案:Writeanequationforthelinepassingthrougheachofpoints
(0,6),(-4,8).
A:B:C:D:
答案:Writeanequationforthelinepassingthrougheachofpoints(-1,-7),(5,23).()
A:B:C:D:
答案:Writeanequationforthelinepassingthrougheachofpoints(3,10),(4,7).()
A:B:C:D:
答案:Determinetheequationofthelinethatjoinsthepointswithcoordinates(4,8)and(10,11).()
A:B:C:D:
答案:Determinethecoordinatesofthepointwherethelinesandcross.()
A:(2,5)B:(-2,5)C:(-2,-5)D:(2,-5)
答案:(2,5)Whatisthegradientoftheline?()
A:-2B:-1C:2D:1
答案:2
第十一章單元測試
Writetheequationofacirclewhosecenterisat(3,-2)andhasaradiusof11.()
A:B:C:D:
答案:Determinethevertexof.()
A:(-5,-3)B:(5,3)C:(5,-3)D:(-5,3)
答案:(5,3)Completethesquareontheandportionsoftheequationandwritetheequationintothestandardformoftheequationofthehyperbola.()
A:B:C:D:
答案:Writeinstandardformandfindtheeccentricity.()
A:,.B:,.C:,.D:,.
答案:,.Solvetheequation.()
A:B:C:D:
答案:;Write-10x+35intheform.()
A:B:C:D:
答案:Findthecoordinatesofthepointsofintersectionofthegivenstraightl
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