Consider R² with the usual topology, let A and B be two subsets of R2. We denotethe closure of a set C as C and the interior of C as C° provea) AUB=AUBb) (ANB) = A OBⓇ

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Answered: Consider R² with the usual topology,…

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter3: Functions And Graphs

Section3.2: Graphs Of Equations

Problem 68E

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Consider R² with the usual topology, let A and B be two subsets of R2. We denote the closure of a set C as C and the interior of C as C° prove a) AUB=A UB b) (An B) = A°N B°