This course is the part-1 of Ch02. Relations and Functions of Class 11 Maths. In this self-study course you will learn Ordered pairs. Cartesian product of sets. Number of elements in the Cartesian product of two finite sets. Cartesian product of the set of reals with itself (upto R x R x R). Definition of relation, pictorial diagrams, domain, co-domain and range of a relation. Function as a special type of relation. Sum, difference, product and quotients of functions. This course also has solutions of NCERT Exercise questions. Please note, questions based on Domain and Range of a function is available in the part-2 of this course.