# Chapter 2 - Set Theory - 2.4 Set Operations and Venn Diagrams with Three Sets - Exercise Set 2.4: 49

a.$II$ region b.$II$ region c.$A\cap B = B\cap A$

#### Work Step by Step

a. $II$ region - the one where the circle for $A$ intersects with the circle for $B$. b. $II$ region - the one where the circle for $B$ intersects with the circle for $A$. c. We can conclude that $A\cap B = B\cap A$.

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