Drexel dragonThe Math ForumDonate to the Math Forum



Search All of the Math Forum:

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


Math Forum » Discussions » Professional Associations » nyshsmath

Topic: re: #32
Replies: 23   Last Post: Jun 18, 2010 5:18 AM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
precopio@nycap.rr.com

Posts: 100
Registered: 8/26/09
Re: #32
Posted: Jun 17, 2010 8:29 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

Exactly, and as I stated I have different books that will give different answers, so even authors are not consistent. Kind of like interpreting the bible. LOL
---- msedfun@aol.com wrote:
>
> Once again - we are debating and debating - so how can we expect the students to know how to do it?
>
> Sharon
>
>
>
>
>
>
>
>
> -----Original Message-----
> From: Roberta Silver <rsilver@pob.k12.ny.us>
> To: nyshsmath@mathforum.org; nyshsmath@mathforum.org
> Sent: Thu, Jun 17, 2010 8:16 am
> Subject: RE: #32
>
>
> The answer is 8. You take the principal square root of 4 and cube it.
>
>
>
> ________________________________
>
>
>
> From: owner-nyshsmath@mathforum.org on behalf of Linda Restive
>
> Sent: Wed 6/16/2010 4:46 PM
>
> To: nyshsmath@mathforum.org
>
> Subject: Re: #32
>
>
>
>
>
> I mean 8 OR -8!! sorry.
>
>
>
> ----- Original Message -----
>
> From: Linda Restive <mailto:precopio@nycap.rr.com>
>
> To: nyshsmath@mathforum.org
>
> Sent: Wednesday, June 16, 2010 4:41 PM
>
> Subject: Re: #32
>
>
>
> Along the same lines, what is the VALUE OF 4 ^ (3/2)? I have a book
>
> that says 8 and -8.... but in another book they give the answer as only 8. It
>
> seems even the authors are confused. I tried googling it but I get conflicting
>
> answers.
>
>
>
> ----- Original Message -----
>
> From: TKENYON@crcs.wnyric.org
>
> To: nyshsmath@mathforum.org
>
> Sent: Wednesday, June 16, 2010 3:45 PM
>
> Subject: re: #32
>
>
>
>
>
> Which is why is should be absolute value of x, because while you assume
>
> the positive square root (principal root), you don't know that x is positive -
>
> it was never indicated that the domain was positive values of x.
>
> (I'm not sure if we're in agreement, or doing two different things.)
>
>
>
>
>
>
>
> when solving an equation x squared = 9, then yes the answer is + and
>
> - 3, but when it is written as a square root, you assume the positive square
>
> root.
>
>
>
>
>
>
>
> ******************************************************************* * To
>
> unsubscribe from this mailing list, email the message * "unsubscribe nyshsmath"
>
> to majordomo@mathforum.org * * Read prior posts and download attachments from
>
> the web archives at * http://mathforum.org/kb/forum.jspa?forumIDg1
>
> *******************************************************************
>
>
>
>
>
> ________________________________
>
>
>
>
>
>
>
>
>
>
>
> No virus found in this incoming message.
>
> Checked by AVG - www.avg.com
>
> Version: 8.5.437 / Virus Database: 271.1.1/2940 - Release Date: 06/15/10
>
> 18:35:00
>
>
>
>
>
>
>
> ________________________________
>
>
>
>
>
>
>
>
>
>
>
> No virus found in this incoming message.
>
> Checked by AVG - www.avg.com
>
> Version: 8.5.437 / Virus Database: 271.1.1/2940 - Release Date: 06/15/10
>
> 18:35:00
>
>
>
>
>
> *******************************************************************
>
> * To unsubscribe from this mailing list, email the message
>
> * "unsubscribe nyshsmath" to majordomo@mathforum.org
>
> *
>
> * Read prior posts and download attachments from the web archives at
>
> * http://mathforum.org/kb/forum.jspa?forumID=671
>
> *******************************************************************
>
>
>


*******************************************************************
* To unsubscribe from this mailing list, email the message
* "unsubscribe nyshsmath" to majordomo@mathforum.org
*
* Read prior posts and download attachments from the web archives at
* http://mathforum.org/kb/forum.jspa?forumID=671
*******************************************************************



Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.