Let u = R, a = {x | - 1

Let u = R, a = {x | - 1

(1) A = (- 1,5], B = (- infinity, 3) u [15, + infinity]
So CUA = (- infinity, - 1] U (5, + infinity)
(2) AUB = (- infinity, 5] u [15, + infinity)
Cu(AUB)=(5,15)

Elden Ring Premiere

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