优课网
首页
数学
语文
英语
化学
物理
政治
历史
生物
首页
> 要使(x+1-2)-1有意义,则x的取值范围是______.-数学
要使(x+1-2)-1有意义,则x的取值范围是______.-数学
题目简介
要使(x+1-2)-1有意义,则x的取值范围是______.-数学
题目详情
要使(
x+1
-2)
-1
有意义,则x的取值范围是______.
题型:填空题
难度:中档
来源:不详
答案
∵(
x+1
-2)-1,即
class="stub"1
x+1
-2
有意义,
∴x+1≥0,
x+1
-2≠0,解得x≥-1且x≠3.
上一篇 :
He could have finished it on
下一篇 :
计算:4-1=______,(35)0=______.-数
搜索答案
更多内容推荐
No. Two High basketball team ______ won the Friday night game with a score of 100-99.A.narrowlyB.la
After two years’ study, he now has a __________ better command of English.A.veryB.farC.fairlyD.quit
Seeing the coach nodding ________ to her, the little dancer was no more nervous and went on with he
The rain was heavy and _________ the land was flooded.A.consequentlyB.environmentallyC.previouslyD.s
Xiao Hong worked harder last year. _____, she still didn't get high grades.[ ]A. As a result B.
要使(x-3)0有意义,那么x的取值范围是()A.x>3B.x<3C.x≥3D.x≠3-数学
—You don’t seem to be quite yourself today. What’s wrong? —Oh, I’m suffering from a cold. Nothing se
Nobody could believe what Chloe says because she is ___________ changing her mind.A.regularlyB.stead
Why were you upset? The headteacher wasn’t blaming anyone. He said things like that could be avoided
The charity sale our school organizes every year has taught us much that we would never have________
计算和化简(1)(ab)5-(ab)2(2)(x2-xm)3÷x2m(3)a2-a4+(-a2)3(4)30-2-3+(-3)2-(14)-1(5)(x-y)3÷(y-x)2(6)(n-m)3-(m-
Anyone, whether he is an official or a bus driver, should be respected.A.especiallyB.equallyC.natur
计算:3-1+8×|-13|=______.-数学
Everything was placed _______ where he wanted it for the party, with which he was very satisfied.A.g
Under criminal law, people whocarry and use large numbers of fake banknotes will be sentenced to les
下列运算中,正确的是()A.2x+x=3x2B.(-a2)•a3=a6C.-2x-2=-2x2D.(2m)5=2m5-数学
下列等式成立的是()A.(-3)-2=-9B.(-3)-1=-13C.(ab)-2=ab-2D.(-120)0=0-数学
Sometimes parents’ control of young kids will be thought to be such an invisible rope, with which to
The businessperson wanted to sell his goods fast: ______, he chose his partner with great care.A.an
He devoted himself _______ to his research and got many achievements.A.certainlyB.extremelyC.careful
I’m definitely going to settle in the countryside when I retire. All the words have a similar meanin
下列算式中,你认为正确的是()A.(-1)-1=1B.1÷ba×ab=1C.1m÷m•m÷1m=1D.3a-1=13a-数学
A Korean survey shows that shopping cart handles are the most bacteria-carrying items among some __
计算:(1)-0.10=______;(2)(-0.1)0=______;(3)(-0.5)-2=______;(4)(12-13)-1=______.-数学
Nancy reminded me of what I should ________ have forgotten. [ ]A. thereforeB. instead C. otherwise D
—How do you think I should receive the reporter?—___ you feel about him, try to be polite.A.HowB.Wha
--- You've finally figured out the puzzle!--- Yeah, in a complex way, _______.A.tooB.yet C.eit
If you are traveling_ the customs are really foreign to your own,please do as the Romans do.-高三英语
Progress so far has been very good.We are, __, confident that the work will be completed as expected
计算:(1)x-2y-3(-2x-3y-1)-22-1x2y-3(2)-2-2+25+12-3-1+(π-3.14)0.-数学
Time is limited and let's come______ to the point.A.straightB.strangelyC.immediatelyD.clearly-高
She devoted herself ______ to her research and it earned her a good reputation in her field. A.stron
The food ran out early, but __________ the party was a success according to the guests present that
化简:(1)(2x+3)2-(3x+2)2(2)4a2(a-b)(a+b)-(2a2-b2)(2a2+b2)(3)用乘法公式简便运算:20012(4)计算:[-5+3×(56)0]-1-[(-a)15
There was such a long queue for coffee at the interval that we ______ gave up. [ ]A. eventuallyB. un
A model or an experiment in a science class can help us see things which wouldremain hidden.A.theref
— Now that you like the computer so much, why not buy one?— Well, I can’t afford ______ computer at
No one responded when Tom was speaking, so he paused _______ before continuing to draw our attentio
The city of Jilin is beautiful all the year around, in winter. The Jilin rime attracts plenty of tou
He ran ________ fast that I couldn’t catch up with him.A.soB.suchC.veryD.too-高一英语
计算:2-1+(n-2)0+(-1)2013=______.-数学
把下列各式化成不含分母的式子:(1)4x-2y2z=______.(2)2x+3y2=______.(3)2ba-b=______.(4)2x-yx5y=______.-数学
If you are invited to any special occasion such as a wedding or a celebration, you’ll have to be ___
(1)计算:2cos30°-(13)-1+(-2)2×(-1)0-|-12|;(2)化简求值:(a-aa-1)÷a2+aa-1,(其中a=2sin45°+2);(3)解方程:x2+3x=10.-数学
计算:(-1)3+20-(12)-1+9-数学
— Have you read this book?— Yes. But that one is ________ worth reading.A.bestB.moreC.muchD.better-高
The students are ___ young people between the ages at between the age of sixteen and twenty.A.mostB
----Volunteering is becoming ______ popular in China. ---- Yeah. People are now aware that helping
— It’s getting dark, but Mr. Chen is till at his office. — No surprise. Who else can _______ he doe
What a terrible experience! ________, you’re safe now — that’s the main thing.A.AnywayB.BesidesC.Oth
返回顶部
题目简介
要使(x+1-2)-1有意义,则x的取值范围是______.-数学
题目详情
答案
∴x+1≥0,