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Number systems — MATHS STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9MATHSNumber systems1 Mark
Question
Which of the following is an irrational number.
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Answer

  1. $\sqrt{23}$
    Solution:
    It doesn't represent the form of $\frac{\text{p}}{\text{q}}$ and $\text{q}\not=0$

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