perplexus.info :: Just Math : Just prove it

Just prove it (Posted on 2013-10-20)

Prove that:
If (x+sqrt{1+y^2})*(y+sqrt{1+x^2})=1,
then
x+y=0 .

No Solution Yet Submitted by Ady TZIDON

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Subject	Author	Date
Hyperbolic Approach	Harry	2013-10-28 08:48:51
Small hint , no spoiler	Ady TZIDON	2013-10-24 17:26:40
Musing on possible lines of attack	Jer	2013-10-23 08:55:08
Doing it backwards	Steve Herman	2013-10-21 09:19:44

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