Show that no integer u=4n+3 can be written as u = a^2 + b^2 where a,b are integers.

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- May 1st 2009, 06:48 AMmpryalintegers
Show that no integer u=4n+3 can be written as u = a^2 + b^2 where a,b are integers.

- May 1st 2009, 06:59 AMMoo