log1/3(x-2)+log1/3(12-x)>=-2

ОДЗx-2>0⇒x>212-x>0⇒x<12x∈(2;12)log(1/3)[(x-2)(12-x)]≥-2(x-2)(12-x)≤912x-x²-24+2x-9≤0x²-14x+33≥0x1+x2=14 U x1*x2=33x1=3 U x2=11x≤3 U x≥11x∈(2;3] U [11;12)