Well this one looks very interesting, it looks pretty obvious but I can't find a way to prove it formally: Let a,b,c be positive numbers. Prove:
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Try to define mathematically what is (I believe it is the greatest of these numbers ?). You can't just leave a verbal operation in your limit, you must express it in algebraïc operations. It might be easier
Originally Posted by adam63 Let a,b,c be positive numbers. Prove: Here is the basic idea.
Let's suppose that and [othervise you can always swap the variables ... ]. Because is... (1) ... and... , (2) ... from (1) and (2) we derive... (3) Kind regards
Originally Posted by chisigma Let's suppose that and [othervise you can always swap the variables ... ]. Because is... (1) ... and... , (2) ... from (1) and (2) we derive... (3) Kind regards very nice !! I like such proofs!
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