Why square root of 42 is not rational number

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22-08-2017
Mathematics

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Why square root of 42 is not rational number

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kphung76127 kphung76127 · Answer 1 · 2017-08-22T02:20:24+02:00

kphung76127 kphung76127

22-08-2017

The square root of 42 is about 6.48074...

The decimal is nonterminating and nonrepeating, which makes it irrational. It also cannot be represented as a ratio of two integers (whereas all rational numbers can be represented as a ratio of two integers).

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