首页
试卷库
试题库
当前位置:
X题卡
>
所有题目
>
题目详情
解下列方程: x2+(+1)x=0
查看本题答案
包含此试题的试卷
教案备课库《初三年级上学期数学学科大练习(二)》真题及答案
点击查看
你可能感兴趣的试题
如果对短路点的正负零序综合电抗为X1ΣX2ΣX0Σ而且X1Σ=X2Σ故障点 的单相接地故障相的电流比
X1Σ>X0Σ
X1Σ=X0Σ
X1Σ
按要求解下列方程x2+x-3=0公式法
用配方法解下列方程:1x2+5x-1=0
如果对短路点的正负零序综合电抗为X1ΣX2ΣX0Σ且X1Σ=X2Σ则两相接地 短路时的复合序网图是在
X2Σ +X0
X2
X2Σ //X0Σ
以上都不对
用公式法解下列方程x2-6x-2=0
如果对短路点的正负零序综合电抗为X1ΣX2ΣX0Σ且X1Σ=X2Σ则两相接地 短路时的复合序网图是在
X2Σ+X0Σ
X2Σ- X0Σ
X2Σ//X0Σ
解下列方程x2-4x-12=0
解下列方程:3x2+x-2=0;
用配方法解下列方程2x2-4x-1=0
解下列方程2x2﹣4x﹣1=0.
如果对短路点的正负零序综合电抗为X1ΣX2ΣX0Σ而且X1Σ=X2Σ故障点 的单相接地故障相的电流比
X1Σ> X0Σ
X1Σ= X0Σ
X1Σ< X0Σ
不确定
解下列方程:x2+6x-10=0配方法.
用配方法解下列方程0.1x2+0.2x-1=0
用配方法解下列方程1x2+4x+1=0
如果对短路点的正负零序综合电抗为X1ΣX2ΣX0Σ且X1Σ=X2Σ则 两相接地短路时的复合序网图是在
X2Σ +X0Σ
X2Σ
X2Σ//X0Σ
如果对短路点的正负零序综合电抗为X1ΣX2ΣX0Σ而且X1Σ=X2Σ故障点的单相接地 故障相的电流比
同一条输电线三序电抗X1X2X0的大小关系是
X1>X2>X0
X1=X2>X0
X1=X2<X0
X2>1>X0
用配方法解下列方程x2+5x-1=0
用配方法解下列方程4x2-4x-1=0
解下列方程1-3x2+22x-24=0
热门试题
更多
Iwanttoi somefriendstowatchamovietomorrow.
Hewithhisparentsoftentothemovies. A.goes B.isgoing C.aregoing D.go
Koalassleepinthedandgetupatnight.
Ican'tgotherewithyouthisafternoonImustgotoseeadoctor.
TolearnEnglishwellhepracticespeakEnglishEveryday.
Iamgladtoacceptyourkindinvite.
—Whatareyougoingtodotomorrow?—I'mgoingtothec.Themusiccanmakemecomfortable.
Theteacherspeaksveryloudlyallofuscanhearher A.sothat B.because C.since D.when
—Canyoucometomyparty?—SorrybutIhavetop foratest.
YoucanfindthecorrectdateofChristmasonthec.
Thelittleboyrtodothehomeworkatnightbecausehefeelssotired.
—CouldyoupleasehelpmechooseanWP4playeronline? —Ihavetogotomeetmyfriendattherailwaystation. A.I'mafraidIcan't B.Ihopeso C.Iwillhelpyou D.Idon'tthinkso
—Canyoufinishtheworkontime? —Nowemayneedhours A.twomuch B.twomore C.moretwo D.twoanother
Theoldmanleftwithoutsayanything.
—CanyoucometomyhouseonSaturday?—I'maIcan't.
I'mgladmeetyouagain.
ItakeatriptoHainanlastsummerholiday.
I'mafraidIhavetoyourinvitationforIhavetolookaftermygrandmother. A.turnup B.turnto C.turndown D.turnon
Thelittlegirldidn’tstopcryingshefoundhermother.A.after B.untilC.because D.when
Thanksforinviteme.
hetothepartynexttime. A.Maybecomes B./maybecome C.Maybewillcome D./maycomes
It'sraininghardsowe stayathome.A.can B.may C.hasto D.haveto
Ifit raintomorrowmyfatherwilltakemetoschoolinhiscar.
—MustIreturn返还thebooktomorrow? —Noyou.Youkeepitforafewdays. A.mustn'tmay B.mustn'tmust C.needn'tmust D.needn'tcan
Heismakinganinvite.
—CanIhelpyoudear? —Yeah.butIdon'tknowthemachinework. A.whattodo B.whentomake C.howtomake D.wheretomake
YesterdayeveningIhangoutwithmyfriends.
Helefthometwoyearsagoandhismotherexpectstohimeveryday.A.hearfrom B.hearof C.hearabout D.hear
Whenthesonrefusedpickupthepaperthefathersaidnothing.
Let'shavealook.Herearecipeagreatturkeysandwich. A.hasfor B.isof C.isfor D.areof
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
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