Sep 15, 2012 Thread starter #1 D dwsmith Well-known member Feb 1, 2012 1,673 All numbers of the form $(-1)^n/[1 + (1/n)]$, $n\in\mathbb{Z}^+$. $(-1)^n/[1 + (1/n)] = (-1, 1)$ is that true?
All numbers of the form $(-1)^n/[1 + (1/n)]$, $n\in\mathbb{Z}^+$. $(-1)^n/[1 + (1/n)] = (-1, 1)$ is that true?
Sep 15, 2012 #2 C CaptainBlack Well-known member Jan 26, 2012 890 dwsmith said: All numbers of the form $(-1)^n/[1 + (1/n)]$, $n\in\mathbb{Z}^+$. $(-1)^n/[1 + (1/n)] = (-1, 1)$ is that true? Click to expand... For what $n\in\mathbb{Z}^+$ does $-2/3=(-1)^n/[1 + (1/n)]$ CB
dwsmith said: All numbers of the form $(-1)^n/[1 + (1/n)]$, $n\in\mathbb{Z}^+$. $(-1)^n/[1 + (1/n)] = (-1, 1)$ is that true? Click to expand... For what $n\in\mathbb{Z}^+$ does $-2/3=(-1)^n/[1 + (1/n)]$ CB
Sep 16, 2012 Thread starter #3 D dwsmith Well-known member Feb 1, 2012 1,673 So the accumulation points are 1 and -1 and the set is open then.