Question
Write the following sets using listing method and classify into finite or infinite set :
$E=\left\{x \mid x \in I, x^2=100\right\}$
$E=\left\{x \mid x \in I, x^2=100\right\}$
✓
Answer
$
\begin{aligned}
& \mathrm{E}=\left\{x \mid x \in \mathrm{I}, x^2=100\right\} \\
& \mathrm{E}=\{-10,10\} . \quad \therefore \mathrm{E} \text { is a finite set }
\end{aligned}
$
\begin{aligned}
& \mathrm{E}=\left\{x \mid x \in \mathrm{I}, x^2=100\right\} \\
& \mathrm{E}=\{-10,10\} . \quad \therefore \mathrm{E} \text { is a finite set }
\end{aligned}
$
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