Question

If A=(2,4) and B=[3, 5), find $A\cap B$.

Answer 1

We have
$A=(2,4)=\{x:xϵR,2<x<4\}$

$B=[3,5)=\{x:xϵR,3\le x<5\}$

Clearly, $A\cap B=\{x:xcϵR,3\le x<4\}=[3,4)$