document.write( "Question 1100185: what is the sum of a+ar+ar^2.....to infinity when r<1. \n" ); document.write( "

Algebra.Com's Answer #714724 by ikleyn(52782) $\"\"$ $\"About$

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\n" ); document.write( "what is the sum of a+ar+ar^2.....to infinity when r<1.
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document.write( "It is the sum of an infinite geometric progression.\r\n" );
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document.write( "Infinite geometric progression with the common ratio \"r\" converges  IF AND ONLY IF   |r| < 1.\r\n" );
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document.write( "Then its sum is  S = ,  where  \"a\" is the first term.\r\n" );
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