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e.cartman · 07-16-2008, 01:37 PM

Is it safe to rewrite the inequality |x| > |y| as x^2 > y^2 ?
Is there anywhere this can go wrong? do you see any gaps? Please let me know.

Goldust · 07-16-2008, 02:32 PM

Yes, it's absolutely fine, since it's like saying x and y are positive numbers.

chestnut.cc · 07-20-2008, 05:32 PM

clear... :s

07-16-2008, 01:37 PM	#1 (permalink)
e.cartman Sweeeeeeet! Join Date: Apr 2008 Posts: 558	reducing \|x\| inequality Is it safe to rewrite the inequality \|x\| > \|y\| as x^2 > y^2 ? Is there anywhere this can go wrong? do you see any gaps? Please let me know.

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07-16-2008, 02:32 PM	#2 (permalink)
Goldust Let's get it on Join Date: May 2008 Location: India Posts: 328	Yes, it's absolutely fine, since it's like saying x and y are positive numbers.

07-20-2008, 05:32 PM	#3 (permalink)
chestnut.cc Wouldbegood... Join Date: Jun 2008 Posts: 273	clear... :s

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