Let A={2,3.4,5,6,7,8,9}. Let R be the relation on A defined by {(x,y):x∈A,y∈A and x divides y}. Find domain and range of R.
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Solution
The relation R is R={(2,2),(2,2),(2,4),(2,6),(2,8),(3,3),(3,6),(3,9),(4,4),(4,8),(5,),(6,6),(7,7),(8,8)(9,9)} Domain of R={2,3,4,5,6,7,8,9}=A Range of R={2,3,4,5,6,7,8,9}=A