## College Algebra (6th Edition)

$C\cap A=\{a\}$
$A=\{a,b,c\}$ $;$ $C=\{a,d,f,g\}$ $C\cap A$ The intersection of two sets is a set that includes the elements that belong to both sets. The intersection of $A$ and $C$ has the elements that are included in $A$ and $C$, simultaneously: $C\cap A=\{a\}$