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If f:{5,\ 6}->{2,\ 3} and g:{2,\ 3}->{5,...

If `f:{5,\ 6}->{2,\ 3}` and `g:{2,\ 3}->{5,\ 6}` are given by `f={(5,\ 2),\ (6,\ 3)}` and `g={(2,\ 5),\ (3,\ 6)},` find `fog` .

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