August 5th, 2012, 10:39 AM  #1  
Math Team Joined: Mar 2012 From: India, West Bengal Posts: 3,871 Thanks: 86 Math Focus: Number Theory  Fermat's Curve Quote:
for n=3, y = x^3 is not a parabola, is it? So why it says that y = x^n is always a parabola? I don't understand . . . Balarka .  
August 5th, 2012, 01:16 PM  #2 
Global Moderator Joined: May 2007 Posts: 6,454 Thanks: 567  Re: Fermat's Curve
The are introducing a definition of a generalization. It makes sense only for x > 0.

August 5th, 2012, 07:22 PM  #3  
Math Team Joined: Mar 2012 From: India, West Bengal Posts: 3,871 Thanks: 86 Math Focus: Number Theory  Re: Fermat's Curve Quote:
(They never mentioned that x>0 anywhere) Balarka .  

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