Question

let A={1,2,3,4,5},B={6,7,8,9} and R={(1,7)}, {(3,8)},{(5,9)} be a relation form of A to B a)write the number of relation from A b) depict the relation using an arrow digit​

Answer 1

Answer:

A={1,2,3,4,6}

R={(a,b):a,b∈A,b is exactly divisible by a}

(i) R={(1,1),(1,2),(1,3),(1,4),(1,6),(2,2),(2,4),(2,6),(3,3),(3,6),(4,4),(6,6)}

(ii) Domain of R={1,2,3,4,6}

(iii) Range of R={1,2,3,4,6}