Question

if A={a,b,c,d},B{1,2,3,4} f.A to B,g.A toB defined by
1) f={(a,1),(b,2),(c,4),(d,3)
2)g={(a,1),(a,2),(b,3),(c,4),(d,1)} veryfy wealth fand g are one
one or not​

Answer 1

Answer:

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