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For each of these partial functions, determine its domain, codomain, domain of definition, and the set of values for which it is undefined. Also, determine whether it is a total function.

(a)f:ZR,f(n)=1/n(b)f:ZZ,f(n)=n/2(c)f:Z×ZQ,f(m,n)=m/n(d)f:Z×ZZ,f(m,n)=mn(e)f:Z×ZZ,f(m,n)=mnifm>n

Short Answer

Expert verified

(a)f(n)=1/nifn0iifn=0b) Itisatotalfunctionandnotapartialfunctionf(m,n)=m/nifn0iifn=0d) Itisatotalfunctionandnotapartialfunctionf(m,n)=mnifm>niifmn

Step by step solution

01

Step: 1

(a)f(n)=1/nifn0iifn=0b)Itisatotalfunctionandnotapartialfunctionf(m,n)=m/nifn0iifn=0d)Itisatotalfunctionandnotapartialfunctionf(m,n)=mnifm>niifmn

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