Which answer represents the series in sigma notation? 1+1/3+1/9+1/27+1/81+1/243+1/729

∑j=17(1/3)j−1

∑j=173j−1

∑j=1713j+1

∑j=1713(j+1)

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is there more to this question?

it is definatly the 3rd one. very much looks like it, for a good chance, the third one would be best for you.

8(4)^8=72^feet to say that the total can conclude to 8(4) which as you know would mean 8 x 4. that equals 32w. 32^ could make a 72 answer as well. but your coefficent will remain w so your answer is 72w.

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