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Q1. Show that the following sequences of sets, {Ck}, are nondecreasing, then find limk→∞ Ck. (a)...

Q1. Show that the following sequences of sets, {Ck}, are nondecreasing,

then find limk→∞ Ck.

(a) Ck = {x: 1/k ≤ x < 100 − 1/k}, k = 1, 2, 3, . . . .

(b) Ck = {(x, y): 1/k ≤ x2 + y2 ≤ 1 – (1/k)}, k = 1, 2, 3 . . .

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