(11-2x²)/(x²-1)≥1 ОДЗ: x²-1≠0 (x-1)(x+1)≠0 x=1 x≠-1
(11-2x²)/(x²-1)-1≥0
(11-2x²-x²+1)/(x²-1)≥0
(12-3x²)/(x²-1)≥0
3*(4-x²)/(x²-1)≥0
(2+x)(2-x)/((x-1)(x+1)≥0
-∞____-____-2____+____-1____-____1____+____2____-____+∞
x∈[-2;-1)U(1;2].
Ответ: x∈[-2;-1)U(1;2].