1)(x²-7x+12)/(x²-5x+6)≤0(x-3)(x-4)/(x-3)(x-2)≤0x≠3 (x-4)/(x-2)≤0x=4 x=2 + _ +__________________ 2 4x∈(2;3) U (3;4]2)(x-1)/(4x+5)<(x-3)/(4x-3)(4x²-4x-3x+3-4x²+12x-5x+15)/(4x+5)(4x-3)<018/(4x+5)(4x-3)<0x =-1,25 x=0,75 + _ +________________________ -1,25 0,75x∈(-1,25;0,75)3)(x²+7x+6)/(x²-x-2)≤0(x+1)(x+6)/((x+1)(x-2)≤0x≠-1 (x+6)/(x-2)≤0x=-6 x=2 + _ +________________________________ -6 2x∈[-6;-1) U (-1;2)4)3x²-4x+5≤0D=4-60=-56<0нет решения5)(x-2)²<25(x-2-5)(x-2+5)<0(x-7)(x+3)<0x=7 x=-3 + _ +___________________________________ -3 7x∈(-3;7)6)(2x-1)/(2x-3) + 1<0(2x-1+2x-3)/(2x-3)<0(4x-4)/(2x-3)<0x=1 x=1,5 + _ + _____________________________ 1 1,5x∈(1;1,5)7)(5-х)/(х-6) <2/3(15-3x-2x+12)/(x-6)<0(27-6x)/(x-6)<0x=4,5 x=6 + _ +__________________________________ 4, 5 6x∈(4,5;6)