Thread: Pi squared = ?
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Old 02-04-2015, 06:36 AM  
Barry-xlovecam
It's 42
 
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https://math.la.asu.edu/~surgent/mat271/Euler_Sum.pdf

Quote:
The sum of the inverted squared positive integers is pi squared, divided by six:
Well, the next inverted squared positive integer I encounter ...
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