-1<(x²-1)/(x+2)<1<br>1)(x²-1)/(x+2)>-1
(x²-1)/(x+2)+1>0
(x²-1+x+2)/(x+2)>0
(x²+x+1)/(x+2)>0
x²+x+1>0 при любом х,так как D<0⇒x+2>0⇒x>-2
2)(x²-1)/(x+2)<1<br>(x²-1)/(x+2)-1<0<br>(x²-1-x-2)/(x+2)<0<br>(x²-x-3)/(x+2)<0<br>x²-x-3=0
D=1+12=13
x1=(1-√13)/2 U x2=(1+√13)/2
x+2=0⇒x=-2
_ + _ +
------------------(-2)-----------((1-√13)/2)-----------((1+√13)/2)-----------
x<-2 U (1-√13)/2<x<(1+√13)/2 <br>x∈((1-√13)/2;(1+√13)/2)
x=2 наибольшее целое