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Originally Posted by great_math Prove that Hi.
I guess you mean , right?
Do you know the formula l
Last edited by Rapha; Nov 8th 2008 at 05:26 AM.
Originally Posted by great_math Prove that First note that the function is strictly increasing for (It is in fact strictly increasing for but we take for simplicity’s sake.)
Hence for all we have i.e.
Now define for
Since for we have that for by above.
Thuis is strictly decreasing for
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