i am confused about books. should i really need to study different books? because in each book, same topics are written in different ways. please help.

Hi !!

Follow one book to clarify all your concepts. If reading more than one book confuses you, then just stick to one.

However, for numerical problems, you can follow multiple books. That really helps get strong in different areas of Maths, Physics and Chemistry.

iits good to prefer internet than books.orelse you have to consult a teacher who has read the best book of the same topic you are searching for so you can save time reading instead of selecting books.