Taking the set of natural numbers as the universal set, write down the complements of the following sets:
$\{ x:x$ is a positive multiple of $3\} $
Taking the set of natural numbers as the universal set, write down the complements of the following sets:
$\{ x:x$ is a positive multiple of $3\} $
$U = N$ set of natural numbers
$\{ x:x$ is a positive multiple of $3{\} ^\prime } = \{ x:x \in N$ and $x$ is not a multiple of $3\} $
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