Es exactamente como dijiste, ahora simplifica x/(x^2) y te queda 1/x y calculas el lim cuando x tiende a +- infinito y listo (el limite existe debido a que te va a dar 0) cuando lo calcules por mas y menos infinito.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.