freywartikSweathhe freywartikSweathhe
  • 28-03-2017
  • Mathematics
contestada

Give a direct proof that the sum an even integer and an odd integer is odd.

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crisforp
crisforp crisforp
  • 28-03-2017
Even integer: 2 x a, where a is a  natural number without 0;
Odd integer : 2 x b + 1 , where b is a natural number;
So, 2 x a + 2 x b+ 1 = 2 x ( a + b ) + 1, which is an odd integer.
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