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Mathematics 9 Online
OpenStudy (anonymous):

Write in summation notation. 3 + 6 + 9 + 12

OpenStudy (zzr0ck3r):

\[\sum_{1}^{oo} 3n\]

OpenStudy (zzr0ck3r):

understand why?

OpenStudy (anonymous):

It stops at 12.

OpenStudy (zzr0ck3r):

ahh \[\sum_{1}^{4} 3n\]

OpenStudy (anonymous):

|dw:1343335969690:dw|

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