document.write( "Question 3950: What is the sum of the infinite geometric series with a1 = 27 and r = -4/5? \n" ); document.write( "
Algebra.Com's Answer #1736 by longjonsilver(2297)\"\" \"About 
You can put this solution on YOUR website!
S to infinity = \"a%2F%281-r%29\" where |r|<1\r
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\n" ); document.write( "\n" ); document.write( "so, here we get Sum = \"27%2F%281-%28-4%2F5%29%29\"
\n" ); document.write( "Sum = \"27%2F%281%2B4%2F5%29\"
\n" ); document.write( "Sum = \"27%2F%289%2F5%29\"
\n" ); document.write( "Sum = 15\r
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