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1)f(x)=log(1/2)(x+2)/(x-1)(x+2)/(x-1)>0____+__-2___-__1____+x€(-oo;-2)U(1;+oo)2)f(x)=⁴√(x-1)/(x+2)(x-1)/(x+2)≥0x€(-oo;-2)U[1;+oo)3)f(x)=³√(x+2)/(x-1)(x+2)/(x-1)=€Rx≠-1x€(-oo;-2]U(1;+oo)4)f(x)=(1/2)^((x-1)/(x+2)(x-1)/(x+2)=a€R(x+2)≠0;x≠-2x€(-oo;-2)U(-2;+oo)