on f(x)=x/(x²+x+1 ) et g(x)=racine (x+1)
1) montrez que f mahdouda 3ala IR (determinant)
2)hola mibeyaniya (x+1) (racine (x+1))=<1 (e)
3) taha9a9 ana -1/racinea hale li motarajiha (e) hayeto (a>1)
4)isstanetij ana : racine (((racine a)-1)/(racine a)) < (racine a )/((racine a)-1)