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is negative one and twenty three hundrenths repeating an irrational number

 Apr 12, 2016
 #1
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It repeats, so therefore, it is not an irrational number.

 

Something like:

1.010010001...

Would be irrational. It has a pattern, but it goes on and on and on.

Repeating numbers are not seen as irrational, on the other hand.

 Apr 12, 2016

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