document.write( "Question 1131912: Write geometric series -9/2+3/2-1/2+1/6- ХХХ + 1/39366 in summation notation. Using the formula for the sum of an geometric series, compute the sum in the problem above. \n" ); document.write( "

Algebra.Com's Answer #748651 by ikleyn(52776) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "            The solution by @MathLover1 seems to be almost infinitely long;
\n" ); document.write( "            but it can be implemented much shorter, without making unnecessary calculations.
\n" ); document.write( "            See my solution below.\r
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document.write( "The common ratio is  q =  :  =  =  = .\r\n" );
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document.write( "The formula for the sum of \"n\" first term of an geometry progression is\r\n" );
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document.write( "    S = .\r\n" );
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document.write( "We have   =   and   =   (the n-th term).\r\n" );
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document.write( "Therefore,  \r\n" );
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document.write( "    S =  =  =  =  =  =  =  = .\r\n" );
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