hii
First of all thanx a ton for appreciating our effort. Well the pattern if iit keeps changing and it is not advisable to keep that in mind while preparing, what is important is that u should focus on the key concepts and try to understand them, this will help u a lot, believe it did me when i was preparing for JEE.
About the books .. well it all depends on how much time u have .. r u a school going student or a dropper ?? Do you go to coaching classes ? Well if u do and do not have much time then going through what is taught in class will be good enough in my view.
I hope this helps u
