早教吧作业答案频道 -->数学-->
解不等式组:x+3≥2-x3(x-1)+1<2(x+1)解不等式组:x+3≥2-x3(x-1)+1<2(x+1)
题目详情
解不等式组:x+3≥2-x 3(x-1)+1<2(x+1)
解不等式组:x+3≥2-x
3(x-1)+1<2(x+1)
解不等式组:x+3≥2-x
3(x-1)+1<2(x+1)
▼优质解答
答案和解析
先编号:x+3≥2-x ①
3(x-1)+1<2(x+1)②
①x+3≥2-x
2x≥-1 得x≥-1/2
②3(x-1)+1<2(x+1)
3x-3+1<2x+2
x<4
∴此不等式组解为-1/2≤x
3(x-1)+1<2(x+1)②
①x+3≥2-x
2x≥-1 得x≥-1/2
②3(x-1)+1<2(x+1)
3x-3+1<2x+2
x<4
∴此不等式组解为-1/2≤x
看了 解不等式组:x+3≥2-x3...的网友还看了以下:
探究题:(x-1)(x+1)=x^2-1(x-1)(x^2+x+1)=x^3-1探究题:(x-1)( 2020-03-30 …
已知x/(x^2+x+1)=1/4,求分式x^2/(x^4+x^2+1)的值我查到了2种方法啊貌似 2020-05-12 …
y=(1-x^2)/(1+x^2)的定义域为?f(x)=3√x/√1-x的定义域是?f(x)=1/ 2020-05-17 …
设X≥1,比较因为比较x3与x2-x+1的大小解x-(x-x+1)=x-x+x-1=x(x-1)+ 2020-06-18 …
1.7/x²-1+8/x²-2x=37-9x/x^3-x²-x+12.3/x²+x-2=x/x-1 2020-07-18 …
解方程,明早就要要,5(x-1)=12-(1-x)=-211x+1=5(2x+1)4x-3(20- 2020-07-19 …
用数学归纳法证明(1-x)(1+x+x^2+……+x^(n-1))=1-x^n证:当N=1时,(1 2020-08-01 …
求不定积分∫x^2+1/(x^2-1)(x+1)dx答案是1/2ln(x^2-1)+1/求不定积分∫ 2020-10-31 …
1,已知1/x+1/y=1/6,1/y+1/z=1/9,1/z+1/x=1/15,求xy+yz+zx 2020-11-07 …
例:解分式不等式2xx+1>1当x+1>0时,去分母得2x>x+1;当x+1<0时,去分母得2x<x 2020-11-07 …