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Mathematics 28 Online
OpenStudy (anonymous):

How do you do partial sum of an arithmetic series if the last term is not known?

OpenStudy (loser66):

you said that it's a PARTIAL sum, so , why do you need the last term?

OpenStudy (anonymous):

What is Tn supposed to be in the equation?

OpenStudy (loser66):

it stands for the general form of the term in series

OpenStudy (anonymous):

Like the difference of the terms?

OpenStudy (loser66):

for example, if your series is 1,2,3,4........ so T_1 = 1 T_2 =2.... and so on

OpenStudy (loser66):

using difference to find Tn

OpenStudy (anonymous):

It just says "Find the 70th partial sum of the arithmetic series 37+49+61+..."

OpenStudy (loser66):

ok, post original one please, since you say so, the 70th partial sum is |dw:1370130800287:dw|

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