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Which number is called an irrational number?

Answer and explanation

Correct answer: Cannot be written as \\(\frac{p}{q}\\), where \\(p,q\\) are integers and \\(q\neq0\\)

An irrational number cannot be expressed as \\(\frac{p}{q}\\), where \\(p\\) and \\(q\\) are integers and \\(q\neq0\\). Its decimal expansion is non-terminating and non-repeating. Option A defines a rational number; integers and terminating decimals are also rational. Exam tip: identify an irrational number by a decimal that neither terminates nor repeats.

Related tags

Number SystemsIrrational NumbersRational NumbersDecimal ExpansionClass 9 MathematicsMathematicsClass 9 Mcq

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