Question: Exercise 2. Let denote the Euler totient function. (i) Prove that for all positive integers m and n, if m,n are relatively prime (coprime), then

Exercise 2. Let denote the Euler totient function. (i) Prove that

Exercise 2. Let denote the Euler totient function. (i) Prove that for all positive integers m and n, if m,n are relatively prime (coprime), then (mn-o(m)o(n) (ii) Is the converse true? Prove or provide a counter-example

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