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Mathematics 21 Online
OpenStudy (anonymous):

Write using summation (sigma) notation. If you don't know how to use the equation editor, write it out in words: 7, -35, 175, -875.

OpenStudy (amistre64):

write what using sum notation?

OpenStudy (amistre64):

are those partial sums, or a sequence to be summed?

OpenStudy (anonymous):

@amistre64 write that numbers using sigma

OpenStudy (anonymous):

they are 5 times each other

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