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October 17th, 2009, 01:39 AM  #1 
Newbie Joined: Oct 2009 Posts: 4 Thanks: 0  Help  inequality
Hi there! English is not my first language, so I apologize for my writing. I need help solving this inequality: Thanks in advance! 
October 17th, 2009, 03:18 AM  #2 
Global Moderator Joined: Dec 2006 Posts: 20,484 Thanks: 2041 
Are you given that a, b, and c are all positive?

October 17th, 2009, 03:41 AM  #3 
Newbie Joined: Oct 2009 Posts: 4 Thanks: 0  Re: Help  inequality
Yes. Sorry, I forgt to mention that condition.

October 17th, 2009, 06:58 PM  #4 
Senior Member Joined: Apr 2007 Posts: 2,140 Thanks: 0 
Where did you got the problem, Razzvy?

October 17th, 2009, 11:28 PM  #5 
Newbie Joined: Oct 2009 Posts: 4 Thanks: 0  Re: Help  inequality
I got it from my IXth grade exercise book, but I managed to show that it is wrong. If you want, I can post how I did it. Sorry 
October 18th, 2009, 10:40 AM  #6 
Global Moderator Joined: Dec 2006 Posts: 20,484 Thanks: 2041 
The inequality is false if a = 1 and b = c = 25. Perhaps some other condition on a, b, and c was omitted.


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