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Find the counterexample to show that that following statement is false.

The sum of two three-digit numbers is a four-digit number.

_ +_ is a three-digit number

1 Answer

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R\Q stands for the irrational numbers.  Like pi, or √2.  So if you pick 2 irrational numbers, then multiply them, this says it will always still be an irrational number. 
User Bristweb
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