Prove [1/2(a+b)]^2 < or equal to 1/2(a^2+b^2). where a, b are real numbers. Can't figure out how to end up with a contradiction or if thats even how to approach the problem.
Last edited by hayter221; October 5th 2008 at 01:49 PM.
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It is well known that . It is key to doing this problem.
Is that some kind of theorem though, our professor asks us to be very specific. We cannot assume anything unless it was proven in our book or we prove it oursleves.
It is well known that . PROOF:
wow that makes a lot of sense...thanks!
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