根据公式f(x)=g(x)*h(x)f'(x)=g'(x)h(x)+g(x)h'(x)y=(x+1)/(x-1)=(x+1)*(x-1)^(-1)y'=1*(x-1)^(-1)+(x+1)*(-1)*(x-1)^(-2)*1=1/(x-1)-(x+1)/[(x-1)^2]=(x-1)/[(x-1)^2]-(x+1)/[(x-1)^2]=(x-1-x-1)/[(x-1)^2]=-2/[(x-...