Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: Probability of success calculation
Replies: 17   Last Post: Jun 2, 2011 2:49 PM

 Messages: [ Previous | Next ]
 Brian M. Scott Posts: 1,289 Registered: 12/6/04
Re: As x approaches 5
Posted: Jun 2, 2011 1:33 PM

On Wed, 01 Jun 2011 14:45:50 -0600, JimmyJohn
<Non@Jtheist.net> wrote in

> In article <1roa6g8hx6e2j.uird5q01eykn.dlg@40tude.net>,
> "Brian M. Scott" <b.scott@csuohio.edu> wrote:

>> On Wed, 01 Jun 2011 12:35:03 -0700, Alexandros Bantis
>> <ambantis@gmail.com> wrote in
>> <news:94nij9F5phU1@mid.individual.net> in

>> [...]

>>> I'm curious. How is it possible that the function changes
>>> a fundamental property [f(5) == undefined versus f(5) =
>>> 1/6] when all I've done is multiply by 1. I see that
>>> this has happened, but intuitively it feels odd.

>> It didn't change when you multiplied by 1: the change
>> occurred when you cancelled x - 5. After the multiplication
>> by 1 you actually had

>> (x - 5) / [(x - 5) sqrt(x + 4) + 3],

> Surely, it should be

> (x - 5) / [(x - 5) (sqrt(x + 4) + 3)],

Yes.

[...]

Brian

Date Subject Author
5/11/11 priyatosh
5/11/11 Barb Knox
5/12/11 priyatosh
5/12/11 Pubkeybreaker
5/12/11 The Qurqirish Dragon
6/1/11 Alexandros Bantis
6/1/11 Brian M. Scott
6/1/11 Alexandros Bantis
6/1/11 Brian M. Scott
6/1/11 JimmyJohn
6/2/11 Brian M. Scott
6/1/11 Frederick Williams
6/1/11 JimmyJohn
6/1/11 Barb Knox
6/1/11 Alexandros Bantis
6/1/11 Barb Knox
6/2/11 Frederick Williams
6/2/11 Virgil