首页
试卷库
试题库
当前位置:
X题卡
>
所有题目
>
题目详情
方程5y2﹣3=y2+3的实数根的个数是( )
查看本题答案
包含此试题的试卷
教案备课库《作业:05122.1一元二次方程》真题及答案
点击查看
你可能感兴趣的试题
不解方程你能否知道下列方程是有两个不相等的实数根有两个相等的实数根还是没有实数根12x2-x-1=0
下列方程中没有实数根的方程是
2x
2
- 3x=0
5y
2
-3y+1=0
x
2
+2x-7=0
4x
2
-8x+4=0
已知关于x的一元二次方程.其中m为实数1若此方程的一个非零实数根为k①当k=m时求m的值②若记为y求
已知关于x的方程mx2+3m+1x+3=0.1求证不论m为任何实数此方程总有实数根2如果该方程有两个
从30﹣1﹣2﹣3这五个数中抽取一个数作为函数y=5﹣m2x和关于x的一元二次方程m+1x2+mx+
已知函数y=kx+b的图象如图所示则一元二次方程x2+x+k﹣1=0根的存在情况是
没有实数根
有两个相等的实数根
有两个不相等的实数根
无法确定
下列方程中没有实数根的方程是
x
2
=0.5
4x
2
=3(x-1)
x(x+1)=1
2y
2
+5y-6=0
下列方程中有两个相等的实数根的方程是
2x
2
- 3x=0
5y
2
-3y+1=0
x
2
+2x-7=0
4x
2
-8x+4=0
已知关于x的方程1判断方程是否有实数根2设方程的两个实数根为x1x2若y是m的函数且y=x1-2x2
从30-1-2-3这五个数中随机抽取一个数作为函数y=5-m2x和关于x的方程m+1x2+mx+1=
已知集合
={(x,y)|x,y为实数,且x
2
+y
2
=1},
={(x,y)|x,y为实数,且x+y=1},则A.∩B.的元素个数为( ). A.4B.3
2
1
下列关于一元二次方程的四种说法你认为正确的是
方程2y
2
-y+
=0必有实数根
方程x
2
+x+1=0的两个实数根之积为-1
以-1、2两数为根的一元二次方程可记为x
2
+x-2=0
一元二次方程2x
2
+4x+3m=0的两实数根的平方和为7,则m=-1
方程5y2﹣3=y2+3的实数根的个数是
0个
1个
2个
3个
方程y2-y+=0的两根的情况是
没有实数根;
有两个不相等的实数根
有两个相等的实数根
不能确定
从30﹣1﹣2﹣3这五个数中随机抽取一个数作为函数y=5﹣m2x和关于x的方程m+1x2+mx+1=
以方程x2+2x-3=0的两实数根的和与积为两根的一元二次方程是
y
2
+5y-6=0
y
2
+5y+6=0
y
2
-5y-6=0
y
2
-5y-6=0
已知关于x的一元二次方程kx2-4k+1x+3k+3=0k是整数.1求证方程有两个不相等的实数根2若
已知集合
={(x,y)|x,y是实数,且x
2
+y
2
=1},
={(x,y)|x,y是实数,且y=x},则A.∩B.的元素个数为( ). A.0B.1
2
3
已知二次函数y=ax2+bx+ca≠0的图象如右图的所示则下列结论①a-b+c>o②方程ax2+bx
1个
2个
3个
4个
已知集合
={(x,y)|x,y为实数,且x
2
+y
2
=1},
={(x,y)|x, y为实数,且x+y=1},则A.∩B.的元素个数为 ( ) A.4B.3
2
1
热门试题
更多
Ididn'tknow .A.whenwouldthetrainarriveB.wherecouldIgetthebookC.whathasbeendoneD.wholeftthemessage
—FewyoungpeopleinChinaknowaboutLadyGaga? —sheisquitefamoushereinChina. A.dothey;No B.dothey;Yes C.don'tthey;No D.don'tthey;Yes
Hefallasleepwhenhelistenedtotheteacher.
Internetisveryuseful.Itcanoureyestotheoutside. A.putup B.growup C.turnup D.openup
Look!Theboysandgirlsareplayinggames.happy
—Lookatthemanintheclassroom!IsheMr.White?—Noit behim.He'seatinginthedininghall.A.can't B.mustn't C.maynot D.needn't
—WillyoufixupthemachineaccordingtotheDavid?—Noproblem.A. instructions B. inventions C. invitations D. interviews
—WhatT-shirtdoyouwear?—Large.
Pleasetakethetrashwhenyouleave.
Myalarmclockdidn'tsoIwasonehourlateforthemeeting. A.takeoff B.runoff C.putoff D.gooff
—Anicetie!Apresent? —Yesitis.Myauntittomeformylastbirthday. A.wassending B.hadsent C.willsend D.sent
ThenewspapersaysifmoreundergroundlinesnextyearitwillbemucheasierforpeopletotravelaroundChangchun.A.arefinished B.havebeenfinished C.isfinished D.befinished
Everyonemaymakeamistake.Don'tlaughothers.
Grandmaoftentellsusbeforewegotosleep.
Thereisbackpackonthedesk.ItbelongstoTom. A.a B.an C.the D./
—Couldyoutellme ?Iwillmeetyouattheairport.—At10:00am.A.whattimewillyouarrive B.whattimeyouwillarriveC.whatyourflightnumberis D.whatisyourflightnumber
—How'sJerrynow? —Ihearthecompanyhimaverygoodjobbutheturneditdown. A.expressed B.served C.offered D.introduced
IamsureIwilldoitwellyougivemethischance. A.if B.before C.until D.though
They'retwinsbuttheylookdifferentsomeways. A.in B.by C.with D.on
I'dlikeabowlofnoodlesbeefandtomatoes. A.have B.with C.on D.has
—Ihaveaproblem.Idon'tknowwhattodo. —Let'saskDickforhelp.Hecanwithagoodideatosolveyourproblem. A.thinkup B.giveup C.comeup D.setup
Yesterdaymybrother tosayHappybirthdaytomefromtheSpain.A.calls B. called C. iscalling D.wascalling
Peopleusuallywearclothesoncolddays.
ourgoalsweneedtolearntocooperate. A.Achieve B.Toachieve C.Achieving D.Achieved
Somuchhomework!Itdrivesmecrazy.A.hasn'tchecked B.hasn'tbeencheckedC.wasn'tchecked D.ischecked
—HowarethedishesinthenewrestaurantSarah? —Theyare.Iwanttogothereagain. A.awful B.salty C.expensive D.delicious
DoyouknowthemanvisitedtheUnitedStatesinFebruary? A.who B.which C.whom D.what
—WherecanImycar? —Sorrythereisnotplace.
Myfatherhasfivebrothersandtwo.Itisabigfamilyisn'tit?
Somanytallbuildappearinthecity.
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
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