Log1/3(log2((х-1)/(х-2))) больше -1

ОДЗ (x-1)/(x-2)>0 x=1 U x=2 x∈(-∞;1) U (2;∞) log(2)[(x-1)/(x-2)]<3 (x-1)/(x-2)<8 (x-1)/(x-2)-8<0 (x-1-8x+16)/(x-2)<0 (15-7x)/(x-2)<0 x=15/7  x=2 2