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Number System — Maths STD 9 — Question

Gujarat BoardEnglish MediumSTD 9MathsNumber System1 Mark
Question
Examine, whether the following numbers are rational or irrational: $\sqrt{4}$
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Answer

$\sqrt{4}$ is a perfect square root so it is an rational number. We have, $\sqrt{4}$ can be expressed in the form of $\frac{\text{a}}{\text{b}},$ so it is a rational number. The decimal representation of $\sqrt{9}$ is $3.0. 3$ is a rational number.

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