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27 July, 16:39

How to determine if square root is rational or irrational?

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  1. 27 July, 20:21
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    The easiest way is to evaluate the square root using a calculator.

    Add 1 to the result then square this. If you end up with a fraction, an integer, a terminating decimal, or a recurring decimal, the square root of the original square root is rational. If you end up with an irrational number, then the original square root was irrational.
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