Q. Which of the arguments is not valid in proving sum of two odd number is not odd. (Solved)
1. 3 + 3 = 6, hence true for all
2. 2n +1 + 2m +1 = 2(n+m+1) hence true for all
3. all of the mentioned
4. none of the mentioned
- a. 3 + 3 = 6, hence true for all