Question

represent all possible functions defined from {a,b} to {1,2}​

Answer 1

Answer:

given = {α,b} and {1,2}

solution,

let A={α,b}

B={1,2}

A cross B=[{a, 1}{a, 2}{b, 1}{b, 2}]

B cross A= [{1,a}{1,b}{2,a}{2,b}]