when is x+y equal to sqrt (x^2+y^2)?

Question

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Guest Jul 16, 2014

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Best Answer

I'm not doing the whole thing I am too tired but the answer is x=0 or y=0

because if you square both sides you get

(x+y)^2=x^2+y^2

if you do the expansion you hopefully understand how I came to my conclusion.

Melody Jul 16, 2014

Melody · Answer 1 · 2014-07-16T03:55:59

I'm not doing the whole thing I am too tired but the answer is x=0 or y=0

because if you square both sides you get

(x+y)^2=x^2+y^2

if you do the expansion you hopefully understand how I came to my conclusion.

DragonSlayer554 · Answer 2 · 2014-07-17T12:46:58

I will help you Melody.

DragonSlayer554 · Answer 3 · 2014-07-17T03:37:55

This came up at the calculator. {}. So, I think that the answer is 0.