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OpenStudy (anonymous):
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ganeshie8 (ganeshie8):
use geometric series formula
OpenStudy (anonymous):
I did the whole process for this but wound up getting a different answer than what was in the options.
ganeshie8 (ganeshie8):
Okay, whats your first term ? whats your common ratio ?
OpenStudy (anonymous):
first term is -4 common ratio is -6
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ganeshie8 (ganeshie8):
thats right !
ganeshie8 (ganeshie8):
check it with wolfram : http://www.wolframalpha.com/input/?i=-4%281-%28-6%29%5E8%29%2F%281-%28-6%29%29
ganeshie8 (ganeshie8):
Did you also get `959780` ?
OpenStudy (anonymous):
Well I got 3839122.28571 but I probably messed up doing all of the steps on paper:,)lol That's a cool website!
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