Question: (a) Let A = {n2|n Z+}. Find a one-to-one correspondence between Z+ and A. (b) Find a one-to-one correspondence between Z+ and {2, 6,

(a) Let A = {n2|n ∈ Z+}. Find a one-to-one correspondence between Z+ and A.
(b) Find a one-to-one correspondence between Z+ and {2, 6, 10, 14, ...}.

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