Which of the following is a rational number ? - Vidyadip

MCQ

Which of the following is a rational number ?

A
$\sqrt{10}$
✓
$\sqrt{9}$
C
$\sqrt{15}$
D
$\sqrt{12}$

✓

Answer

Correct option: B.

$\sqrt{9}$

$\sqrt{9}$ is an irrational number but because $\sqrt{9}=\sqrt{3}^2=3$ and $3$ is a rational

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