document.write( "Question 748250: For the following series, express the finite sum in summation notation:\r
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document.write( "3 − 9 + 27 − 81 + 243 − 729 \n" );
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Algebra.Com's Answer #455397 by tommyt3rd(5050)![]() ![]() You can put this solution on YOUR website! these numbers are all powers of 3 with 3^1=3 up to 3^6=729. Therefore\r \n" ); document.write( "\n" ); document.write( " |