Transcription of RELATIONS AND FUNCTIONS
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RELATIONS AND FUNCTIONS
OverviewThis chapter deals with linking pair of elements from two sets and then introducerelations between the two elements in the pair. Practically in every day of our lives, wepair the members of two sets of numbers. For example, each hour of the day is pairedwith the local temperature reading by Station's weatherman, a teacher often pairseach set of score with the number of students receiving that score to see more clearlyhow well the class has understood the lesson. Finally, we shall learn about specialrelations called Cartesian products of setsDefinition : Given two non-empty sets A and B, the set of all ordered pairs (x, y),where x A and y B is called Cartesian product of A and B; symbolically, we writeA B = {(x, y) |}
2.1 Overview This chapter deals with linking pair of elements from two sets and then introduce relations between the two elements in the pair. Practically in …
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