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Number systems — MATHS STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9MATHSNumber systems1 Mark
Question
Which of the following numbers is irrational?
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Answer

  1. $\sqrt{8}$

    Solution :
    The decimal expansion of $\sqrt{8}=2.82842712...,$ which is non-terminating, non-recurring.
    Hence, it is an irrational number.
    Hence, the correct opion is (c).

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