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37 is not correct. I thought maybe (2,6) and (6,2) might be considered as duplicates as well. I counted 27 using this method, but this is not correct either. I am not sure what I am missing.
Basics of Sets and Relations #4
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37 is not correct. I thought maybe (2,6) and (6,2) might be considered as duplicates as well. I counted 27 using this method, but this is not correct either. I am not sure what I am missing.