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1 over 2*9*20*4+9 squared
 Mar 21, 2012
 #1
avatar+753 
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1 / 2*9*20*4 + 9 squared, is 1 / 1440 + 81. This, if it is what I think it is, is 1 / 1521 because you never said whether or not there were perenthesis around the 2*9*20*4 + 9. Otherwise, the answer would be 123201/1521, or 81. 

 Jul 18, 2023

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