Prove: For every real number x>1, there exists two distinct positive real numbers y and z such that(adsbygoogle = window.adsbygoogle || []).push({});

x = (y^2 +9)/(6y) = (z^2 +9)/(6z)

Okay.. this has real got me beat. Firstly (this sounds stupid and obvious), when they give us a proof, is it really true? Do we just naturally believe that its true and with this in mind, prove it? Or could it be wrong and we eventually find that out if we do the proof?

I first tried to isolate y and z in terms of x and set them equal to each other, but that led me to a dead end.

Then i tried the contrapositive, but that didn't make it any easier.

So.. I tried contradiction.

For every real number x>1, there DOES NOT exists two distinct positive real numbers y and z such that

x = (y^2 +9)/(6y) = (z^2 +9)/(6z)

and now im out of ideas?

Can somebody please help me out?

Thanks

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# Homework Help: Real Analysis Proof.

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