(2x²+2x-11)/(x²+x+1)<1
(2x²+2x-11)/(x²+x+1)-(x²+x+1)/(x²+x+1)<0
(2x²+2x-11-x²-x-1)/(x²+x+1)<0
(x²+x-12)/(x²+x+1)<0
[(x+4)(x-3)]/(x²+x+1)<0
+ - +
---------------|--------------------------|------------------ x
-4 3
x∈(-4;3).
наименьшее целое решение неравенства х=-3
1) 17/300
3/25 = 36/300
2) 17/60
5/12 = 25/60
1/20 = 3/60
3) 19/180
11/30 = 66/180
1/15 = 12/180