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Which of the following statements about decimal expansions is correct?

Answer and explanation

Correct answer: A non-terminating, non-recurring decimal expansion represents an irrational number.

A decimal expansion that neither terminates nor repeats represents an irrational number. For example, \(\sqrt{2}=1.414213\ldots\) has a non-terminating, non-recurring decimal expansion. A recurring decimal such as \(0.333\ldots=\frac{1}{3}\) is rational, so options B and D are not correct.

Related tags

Real NumbersIrrational NumbersDecimal ExpansionsNumber SystemsMathematicsClass 9 Mcq

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