we have always kept in view the examination requirements of the students and various difficulties and troubles, which they face, while studying the subject. We have also, constantly, kept in view the requirements of those intelligent students, who are always keen to increase their knowledge. All along the approach to the subject matter, every care has been taken to deal with each and every topic as well as problem from the fundamentals and in the simplest possible manner, within the mathematical ability of an average student. The subject matter has been amply illustrated by incorporating a...