Join TSR now and get all your revision questions answeredSign up now
    • Thread Starter
    Offline

    2
    ReputationRep:
    Hey guys, I need some help with this question( attached). I tried it, but I seem to have made nearly zero progress. I was thinking it perhaps has something to do with a known theorem like AM-GM inequality but no idea. Could I please have a hint ? Link is below :

    http://i.gyazo.com/3e23ef603099db7dc9d400129b497e20.png
    • Thread Starter
    Offline

    2
    ReputationRep:
    No help ?
 
 
 
Poll
How are you feeling about your A-level results?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Quick reply
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.