1) 5 = < x+y < 6 so, draw two lines x+y=5 and x+y =6 and the region btw the two lines is the req graph inclding the boundary of line x+y=5 and excluding the other...
3) 1=< x^2+y^2 <2 so, draw two circles x^2+y^2 =1 and x^2+y^2=2 and the region btw the two lines is the req graph including the boundary of circle x^2+y^2=1 and excluding the other........
Moderation Team
![[Post New]](/templates/default/images/icon_minipost_new.gif){kind=icon}
![[Up]](/templates/default/images/icon_up.gif "[Up]"){kind=icon}
141
