document.write( "Question 1088869: If the sum of the firstn terms of a G. P. is represented bySn, then prove that
\n" ); document.write( "Sn (S3n –S2n) = (S2n –Sn)^2 \n" ); document.write( "

Algebra.Com's Answer #703179 by ikleyn(52802) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "Actually, it is OBVIOUS.\r\n" );
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document.write( "HINT.  Each side is equal to  ,\r\n" );
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document.write( "       where q is the common ratio of the given progression.\r\n" );
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\n" ); document.write( "\n" ); document.write( "On geometric progressions, see the introductory lessons\r
\n" ); document.write( "\n" ); document.write( "    - Geometric progressions\r
\n" ); document.write( "\n" ); document.write( "    - The proofs of the formulas for geometric progressions \r
\n" ); document.write( "\n" ); document.write( "    - Problems on geometric progressions\r
\n" ); document.write( "\n" ); document.write( "    - Word problems on geometric progressions\r
\n" ); document.write( "\n" ); document.write( "in this site.\r
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\n" ); document.write( "\n" ); document.write( "Also, you have this free of charge online textbook in ALGEBRA-II in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-II - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this online textbook under the topic
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