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Mathematics
Problem
The domains of two rational functions are
R
∖
{
1
,
3
}
\mathbb{R}\setminus\{1,3\}
R
∖
{
1
,
3
}
and
R
∖
{
3
,
5
}
\mathbb{R}\setminus\{3,5\}
R
∖
{
3
,
5
}
respectively. Without using their explicit expressions, write the domain of their product.
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