You will know the derivations and its basic concepts which were in syllabus which will help you in cbse and will help in further studies and will help u in graduation and post-graduation and firstly in ur exams.. Derivations and its formulas and how to aplly it and how to learn it in easy manner and how to learn it and how the particular formular where to aplly it how to lear sin and cos formulas and how to learn some other formulas and some basic concepts and this topic u will get in exam also u can score good marks in exam and learn from very basic and u can schedule regular class after that if u like it and it will be easy for you to learn in very easy manner and go and schedule your course and it in simple and easy manner learn with me.