• July 12th 2010, 04:46 PM
jess0517
Hey Forum!
So i stumbled upon this question and im having difficulty proving it. =/
Any help would be appricited.

Attachment 18182
• July 12th 2010, 05:05 PM
Also sprach Zarathustra
n/{1/a+1/b}<=sqrt{ab}<={a+b}/2
• July 12th 2010, 05:07 PM
jess0517
Quote:

Originally Posted by Also sprach Zarathustra
n/{1/a+1/b}<=sqrt{ab}<={a+b}/2

Im confused... how does that prove it?
• July 12th 2010, 08:17 PM
chiph588@
Quote:

Originally Posted by jess0517
Hey Forum!
So i stumbled upon this question and im having difficulty proving it. =/
Any help would be appricited.

Attachment 18182

Try inducting on $n$ for both inequalities.
• July 14th 2010, 02:27 AM
mr fantastic
Thread closed due to this member deleting questions after getting help.