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Mathematics

Which of the following is an irrational number?
2.7
$2.7\overline{2}$
$\sqrt{11}$
$\dfrac{2}{7}$

Rational Irrational Nos

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Answer

$\sqrt{11}$ is square root of non-perfect square i.e 11, thus it is an irrational number.

Hence, Option 3 is the correct option.

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