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I've been trying to figure this one for hours, no pattern is for the sequence. If you can show the source, i'd be glad to]]> Aug 2, 2010 11:18:13 PM Jan 31, 2012 8:48:09 AM natedigby21 0 http://mathforum.org/kb/thread.jspa?messageID=6879852&tstart=0#6879852


christine
]]> Oct 27, 2009 10:57:25 PM Jan 31, 2012 8:47:42 AM chrstnsln22 0 http://mathforum.org/kb/thread.jspa?messageID=7203968&tstart=0#7203968
7/8 = 7/8
2/3 = 6/9
1/2 = 5/10
4/11 = 4/11
1/4 = 3/12
2/13
1/14
]]> Sep 13, 2010 9:49:10 PM Sep 13, 2010 9:49:10 PM Dfrtbx 0 http://mathforum.org/kb/thread.jspa?messageID=7145368&tstart=0#7145368 Thank goodness that you post it in here... The question is really a tricky]]> Aug 5, 2010 2:06:50 PM Aug 5, 2010 2:06:50 PM Den2501 0 http://mathforum.org/kb/thread.jspa?messageID=7130101&tstart=0#7130101 we have :
(x+y)^2=x^2+y^2+2xy
thus,4=8+2xy so xy=-2
same idea for b)!!
that's one method there might be]]> Jul 18, 2010 9:55:57 AM Jul 18, 2010 9:55:57 AM brahmi 1 http://mathforum.org/kb/thread.jspa?messageID=6881756&tstart=0#6881756 ]]> Oct 29, 2009 5:23:42 PM Oct 29, 2009 5:23:42 PM MochaKupcake 0 http://mathforum.org/kb/thread.jspa?messageID=6880282&tstart=0#6880282 > Hi!
>
> Here are two questions that have me really stumped.
>
> Q1 - If x + y = 2 and x^2 + y^2]]> Oct 28, 2009 9:55:41 AM Oct 28, 2009 9:55:41 AM avniu66@hotmail.com 1 http://mathforum.org/kb/thread.jspa?messageID=6879175&tstart=0#6879175 ]]> Oct 27, 2009 9:22:46 AM Oct 27, 2009 9:22:46 AM MochaKupcake 0 http://mathforum.org/kb/thread.jspa?messageID=6878815&tstart=0#6878815 > Hi!
>
> Here are two questions that have me really stumped.
>
> Q1 - If x + y = 2 and x^2 + y^2]]> Oct 26, 2009 10:10:20 PM Oct 26, 2009 10:10:20 PM HallsofIvy 1 http://mathforum.org/kb/thread.jspa?messageID=6877649&tstart=0#6877649
Here are two questions that have me really stumped.

Q1 - If x + y = 2 and x^2 + y^2 = 8, find

a) xy
b) x - y

Do I]]> Oct 25, 2009 11:19:36 AM Oct 25, 2009 11:19:36 AM MochaKupcake 9