1. ## Prove or Disaprove

Prove or Disaprove: if N is odd, then N sqaured + 1 odd

2. Originally Posted by sderosa518
Prove or Disaprove: if N is odd, then N sqaured + 1 odd
Please post where are you getting stuck - can be done easily based on some of the earlier posts

3. Originally Posted by sderosa518
Prove or Disaprove: if N is odd, then N sqaured + 1 odd

Choose an odd N and do it...is it true or not?

Tonio

4. Originally Posted by tonio
Choose an odd N and do it...is it true or not?

Tonio
Yes, but maybe for $\displaystyle n_0$ it will be true and for $\displaystyle n_1$ it won't... :P

5. Originally Posted by sderosa518
Prove or Disaprove: if N is odd, then N sqaured + 1 odd
Let n = 2m + 1. Square it and add 1. What happens?

NB: Post #3 provides an obvious thing to do first.