Discrete Math Question Let Q mn mn e P Which of the follo

Discrete Math Question:

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Let Q = {m/n : m,n e P}.

Which of the following are well-defined definitions of functions on Q?

a) f(m/n) = n/m

b) g(m/n) = m^2 + n^2

c) h(m/n) = (m^2 + n^2)/(m*n)

Picture:

http://i.imgur.com/7KgPjfh.jpg

Solution