what are the basic things we should knw b4 startin diffrenciation???cn u pls tel which standards textbook i should prefer before starting it???

The content a t meritnation and in the textbooks is more than enough to study.

I would advise you to go through the same step by step, First chapter to the last as that will help you understand the topics better and easily.

Getting a lot of books will not only confuse you, you will also be losing a lot of time sifting through all of them.

Remember, there is no shortcut to success and you will have to work hard and read the complete book to make sense out of it.