不等式组1.2x>1-xx+2<4x-12.x-5>1+2x3x+2<4x3.2/3x+5>1-xx-1<3/4x-1/
不等式组1.2x>1-xx+2<4x-12.x-5>1+2x3x+2<4x3.2/3x+5>1-xx-1<3/4x-1/
x−5>1+2x3x+2<4x
求不等式组3x-6<4-xx-1>4x-10
一元二次不等式习题14-4x平方≥xx(x+2)<x(3-x)+1-x平方-2x+8≥0(5-x)(x+4)<0(x+7
解方程1/(xx+x)+1/(xx+3x+2)+1/(xx+5x+6)+1/(xx+7x+12)+1/(xx+9x+20
解不等式组3(1−x)≥2−5xx+23>2x−1
x-5>1+2x 3x+2<4x 解不等式组
解不等式组1+3x<x+5,4x>3x-2
设函数f(x)=xx+2(x>0),观察:f1(x)=f(x)=xx+2,f2(x)=f(f1(x))=x3x+4,f3
1.x-3(x-2)≥4 2.3-xx-1 4x/3+3/2<-x/6
.关于X的不等式组3X+2/4>X+a关于不等式组(1)2XX+a有四个整数解,求a的取值范围.
解决数独问题x 1 x 7 x x x 3 xx x x x 4 x 2 x x9 x 3 6 x 8 7 x 58 x