To prove that the sum of two odd numbers is even, we write them as:

  1. 2m and 2n
  2. m and n
  3. m + 1 and n + 1
  4. 2m + 1 and 2n + 1
Answer

D) 2m + 1 and 2n + 1

(2m + 1) + (2n + 1) = 2(m + n + 1), which is a multiple of 2. SLO M-09-B-13 · Knowledge

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