Re: continuity of a derivative

From: The World Wide Wade (waderameyxiii_at_comcast.remove13.net)
Date: 02/11/05


Date: Fri, 11 Feb 2005 15:18:49 -0800

In article
<1108161201.662124.271680@c13g2000cwb.googlegroups.com>,
 "steve" <sasha@nikodyne.com> wrote:

> Another frustrating problem for me:
>
> For f(t)=exp(1/(t*t-1)), |t|<1, 0 otherwise,
> show f'(t)-->0 as |t| increases to 1.

Compute f'(t) and tell us what is puzzling you.