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Which number has a non-terminating non-recurring decimal?

Answer and explanation

Correct answer: \(\sqrt{10}\)

\(\sqrt{10}\) is irrational because 10 is not a perfect square. Therefore, its decimal expansion is non-terminating and non-recurring. \(\frac{3}{4}=0.75\) and \(\frac{7}{8}=0.875\) terminate, whereas \(\frac{2}{11}=0.1818\ldots\) is recurring. Exam tip: The square root of a natural number that is not a perfect square is irrational.

Related tags

Real NumbersIrrational NumbersDecimal ExpansionSquare RootsNumber SystemsMathematicsClass 9 Mcq

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