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Mathematics 12 Online
OpenStudy (turingtest):

why is this true?\[\large\sum_{i

OpenStudy (perl):

the second sigma is

OpenStudy (turingtest):

gotchya

OpenStudy (perl):

i made a mistake, the second sigma I changed

OpenStudy (turingtest):

yeah I saw that, makes sense, thanks!

OpenStudy (perl):

|dw:1394395736626:dw|

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