The chapter “Relations and Functions” in NCERT Class 11 Maths builds on the concepts of sets and introduces the idea of pairing elements between two sets. Students learn how to represent ordered pairs, Cartesian products of sets, relations, and functions with clear definitions and examples.
Key topics include domain, co-domain, range, types of relations, and different kinds of functions such as one-one, onto, many-one, and into functions. The chapter also explains methods of representing relations and functions using set-builder notation, arrow diagrams, and graphical representation.
The NCERT book provides stepwise explanations, solved examples, and exercises to help students gain a deeper understanding.
This chapter is important for developing logical thinking and forms the base for higher mathematics, making it useful for board exams, JEE, and other entrance tests.
