
求学霸解下图高二数学题,谢谢
1个回答
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|1-(x-1)/3)|<=2
-2=<1-(x-1)/3<=2
-3=<-(x-1)/3<=1
-3=<x-1<=9
p={x|-2=<x<=10}
┐p={x|x<-2或者x>10}
x^2-2x+1-m^2<=0 (m>0)
(x-1)^2<=m^2
-m=<x-1<=m
q={x|1-m=<x<=m+1}
┐q={x|x<1-m或者x>m+1}
┐p是┐q的必要而非充分条件
1-m<=-2
m>=3
m+1<=10
m<=9
实数m的取值范围:3=<m<=9
-2=<1-(x-1)/3<=2
-3=<-(x-1)/3<=1
-3=<x-1<=9
p={x|-2=<x<=10}
┐p={x|x<-2或者x>10}
x^2-2x+1-m^2<=0 (m>0)
(x-1)^2<=m^2
-m=<x-1<=m
q={x|1-m=<x<=m+1}
┐q={x|x<1-m或者x>m+1}
┐p是┐q的必要而非充分条件
1-m<=-2
m>=3
m+1<=10
m<=9
实数m的取值范围:3=<m<=9
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