document.write( "Question 206718This question is from textbook algebra and trigonometry structure and method book 2
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document.write( ": Find the sum of the first 20 terms of the series
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document.write( "1 + 8 + 64 + 512 + ...\r
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document.write( "Please help, I guess I am just unsure of the formula I should use for this...thanks
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Algebra.Com's Answer #156247 by vleith(2983)![]() ![]() ![]() You can put this solution on YOUR website! Look here --> http://en.wikipedia.org/wiki/Geometric_progression \n" ); document.write( " |