优课网
首页
数学
语文
英语
化学
物理
政治
历史
生物
首页
> 实数范围内有意义,则x的取值范围是()A.x>1B.x≥lC.x<1D.x≤1-九年级数学
实数范围内有意义,则x的取值范围是()A.x>1B.x≥lC.x<1D.x≤1-九年级数学
题目简介
实数范围内有意义,则x的取值范围是()A.x>1B.x≥lC.x<1D.x≤1-九年级数学
题目详情
实数范围内有意义,则
x
的取值范围是( )
A.
x
>1
B.
x
≥
l
C.
x
<1
D.
x
≤1
题型:单选题
难度:偏易
来源:不详
答案
B
分析:先根据二次根式有意义的条件列出关于x的不等式,求出x的取值范围即可.
解答:解:∵
在实数范围内有意义,
∴x-1≥0,
解得x≥1.
故答案为B.
上一篇 :
化简:.-九年级数学
下一篇 :
化简:=;=.-八年级数学
搜索答案
更多内容推荐
My house _____ when you visited Beijing last time, so I didn’t invite you to my home. A.was being de
A new cinema here. They hope to finish it next month.A.will be buildingB.is builtC.has been builtD.i
When we got there after the accident,we were told that the injuredto the nearest hospital.A.were sen
Do you know when Mr. Brown _______? When he _______ , please let me know.A.will come; will come B.co
Look out! That tree _____ fall down.A.is going to B.will be C.shall D.would-高一英语
计算:.-八年级数学
化简:;=.-九年级数学
当时,二次根式有意义.-九年级数学
In order to find the missing boy, the young couple all they can over the past twenty-four hours. A.d
The old man has retired from the factory. He _____ there for 30 years. A.worksB.workedC.has workedD.
To_____ his position in the country, he appointed his close friend Henry as head of the troops. A.st
Doyle makes good use of many literary devices in his detective novel to____ an impression of tension
计算:_▲_;-九年级数学
计算:()。-九年级数学
-九年级数学
的算术平方根是()A.6B.±6C.D.±-八年级数学
函数中,自变量x的取值范围是A.x≥﹣1B.x≥1C.x≤﹣1D.x≤1-九年级数学
.设a为的小数部分,b为的小数部分.则的值为().A.+-1B.-+1C.--1D.++1-八年级数学
The interviewer will begin to judge you as soon as he or she ________ you in the waiting room.A.sees
Mr. Blake ____ Shanghai in a few days. Do you know when the earliest plane ____ on Sunday?A.is leavi
如图,数轴上与1,对应的点分别为A,B,点B关于点A的对称点为C,设点C表示的数为x,则化简︱x一︱+的结果是A.B.2C.3D.2-八年级数学
-九年级数学
使有意义的的取值范围是(▲).A.B.C.D.-九年级数学
—Have you worked here since you graduated?—No, I ____________at a factory in Beijing for six years.A
—I wonder if you could go with me to the supermarket.—Sorry. I _______ my experiment report all the
The decorations were so lovely that they _____ in a short time. A.sold outB.has been sold outC.were
—What’s the noise outside?—Some children_____ hide-and-seek in the yard. A.were playingB.are playing
We first met on a train in 2000. We both felt immediately that we___each other for years.A.knewB.hav
已知,则=________。-九年级数学
--- What do you think of this novel? --- Er … sorry. I _____. What did you say?A.didn’t listenB.hadn
若,则等于()A.B.C.D.-九年级数学
计算—的结果是A.6B.C.2D.-八年级数学
设,则代数式的值为().A.-6B.24C.D.-八年级数学
的值等于(▲).A.3B.C.D.-九年级数学
—Listen, Lily is playing the piano! —Wow, how sweet the music ______!A.is heardB.hearsC.is soundingD
-- Why didn’t you come to attend our party last night ? --- Sorry, I__________ an interesting progra
2.Great changes ______ in China in the past 20 years.A.took placeB.have taken placeC.were taken plac
“Does anybody know the definition of Nerd?”the host seated in the front.A.askedB.askingC.askD.to ask
He ______ busy yesterday, or he ______ you with your experiment.A.was; had helpedB.was, would have h
–The food here is nice enough. --My friend ______ me a right place. A.introducesB.introducedC.had in
已知是正整数,则实数尥的最大值为A.12B.11C.8D.3-八年级数学
-----Is this the first time youQuanzhou? -----No. But the first time Ihere, the city wasn’t so beaut
After months of voyage, Columbus arrived in what laterto be a new continent.A.had been provedB.was p
如图,若正方形ABCO的各顶点的坐标为把正方形沿OP对折,使点A落在对角线OB上的E处,折痕交AB于P,试求△EPO的面积。-九年级数学
如果=a+b(a,b为有理数),那么a+b等于()A.2B.3C.8D.10-八年级数学
使有意义的的取值范围是-八年级数学
31.By the time we _____the airport, the plane_____.A.arrived at; had taken offB.had got to; took off
. The young man,who by then admission to university,decided to do some part-time jobs to gain more p
I have to walk to school today because my bike _____now.A.is being repairedB. has been repairedC.is
使意义的x的取值范围是___________.-八年级数学
返回顶部
题目简介
实数范围内有意义,则x的取值范围是()A.x>1B.x≥lC.x<1D.x≤1-九年级数学
题目详情
答案
解答:解:∵
∴x-1≥0,
解得x≥1.
故答案为B.