SOLVED: Find the supremum and infimum of each of the following sets. a. A = 2^(2-n) : n ∈ N b. B = sin(mnπ) : n ∈ N c. C = n cos(nt) : n ∈ N d. D = cos(nπ) : n ∈ N e. E = 2^n : n ∈ N f. F = c - i - %n : n ∈ N} g. G = (1 - (-1))^n : n ∈ N h. H = (-1)^(n 1) : n ∈ N i. I = r ∈ R : r < 4 j. J = x ∈ R : -2 < x < 2

Properties of the Supremum - Infinity is Really Big