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Mathematics 17 Online
OpenStudy (anonymous):

union and complement stuff. Come here ghoul!

OpenStudy (idily101):

what is the question?

OpenStudy (anonymous):

He's about to ask

OpenStudy (anonymous):

?

OpenStudy (anonymous):

Everybody that's not ghoul47 can just ignore this: \[\sum_{j=1}^{4}\sum_{i=1}^{5} ij\]

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