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Sharon
Posts:
384
From:
NYC
Registered:
6/26/05
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Re: #32
Posted:
Jun 16, 2010 6:11 PM
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And here is my question to you all: If we are so confused, how are we supposed to expect that our students would have known this??
Sharon
-----Original Message----- From: Linda Restive <precopio@nycap.rr.com> To: nyshsmath@mathforum.org Sent: Wed, Jun 16, 2010 4:48 pm Subject: Re: #32
but x is a variable so it could be anything, why assume x^3 is positive? Are you saying that if it were negative it would read -x^3? This is hard to do in email! ----- Original Message ----- From: "Mary Zanetti" <zanegray49@hvc.rr.com> To: <nyshsmath@mathforum.org> Sent: Wednesday, June 16, 2010 4:27 PM Subject: Re: #32 > Since they are asking yofind the square root of x^3, x must be positive > for x^3 to be positive... > ******************************************************************* > * 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 > ******************************************************************* -------------------------------------------------------------------------------- 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 *******************************************************************
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