焦作市山阳区邮政编号:-(Y×Y)+2》Y
来源:百度文库 编辑:高校问答 时间:2024/05/18 21:02:00
不等式的问题.请数学高手教我
-Y^2+2>Y
Y^2+Y-2<0
(Y+2)(Y-1)<0
-2<Y<1
-(Y×Y)+2》Y
-Y^2+2>Y
Y^2+Y-2<0
(Y+2)(Y-1)<0
-2<Y<1
-Y^2+2>Y
Y^2+Y-2<0
(Y+2)(Y-1)<0
-2<Y<1
-(Y×Y)+2》Y
-Y^2+2>Y
Y^2+Y-2<0
(Y+2)(Y-1)<0
-2<Y<1