Last edited by Jameson; September 9th 2009 at 07:27 AM.
Reason: fixed latex
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Originally Posted by Paul616 Prove: Prove
Last edited by mr fantastic; September 18th 2009 at 07:58 AM.
Reason: Restored original post
Originally Posted by Paul616 Prove: Notice that .
Consider the function .
This function is positive and decreasing for .
Therefore, the sum of rectangular areas by using right-end points is smaller than the area.
This is basically all you need to argue.
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