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Mathematics 18 Online
OpenStudy (anonymous):

Write in sigma notation.

OpenStudy (anonymous):

-1/3+2/9-3/27+4/81-5/243

OpenStudy (anonymous):

I know how to do it, i just dont understand why there are adding and subtracting symbols

OpenStudy (anonymous):

Just make sure that you multiply it by a negative odd number.

OpenStudy (anonymous):

common diff is -1/3

OpenStudy (anonymous):

Yep

OpenStudy (anonymous):

oh that makes sense

OpenStudy (anonymous):

So what do you get?

OpenStudy (anonymous):

just a sec

OpenStudy (anonymous):

|dw:1354525175691:dw|

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