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Sets — Maths STD 9 — Question

Maharashtra BoardEnglish MediumSTD 9MathsSets1 Mark
Question
Write the following sets using listing method and classify into finite or infinite set :

C = {x | x ∈ N, and x is divisible by 7 }

✓

Answer

$
\begin{aligned}
& \mathrm{C}=\{x \mid x \in \mathrm{N} \text { and } x \text { is divisible by } 7 .\} \\
& \mathrm{C}=\{7,14,21, \ldots\} \text { This is an infinite set. } \\
\end{aligned}
$

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