selammitike10 selammitike10
  • 22-08-2017
  • Mathematics
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Why square root of 42 is not rational number

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kphung76127
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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