(x)/((x^(2)+1)(x-1))

(x(2^(x)-3^(x)))/((x^(2)+x+1)(x-1))>0

(x(2^(x)-3^(x)))/((x^(2)+x+1)(x-1))>0

f(x)={(|x^2-1|)/(x-1),\ \ \ for x!=1 \ \ \ \ 2, for \ x=1 at x=1

Value of ((x^(4)+x^(2)+1))/((x^(2)-x+1))-(x+1)^(2) is

Value of ((x^(4)+x^(2)+1))/((x^(2)-x+1))-(x+1)^(2) is

Value of ((x^(4)+x^(2)+1))/((x^(2)-x+1))-(x+1)^(2) is

If a function f(x) is given by f(x)=(x)/(1+x)+(x)/((x+1)(2x+1))+(x)/((2x+1)(3x+1))+...oo then at x=0,f(x)