document.write( "Question 1046326: find the sum of the G.P 1 + 3 + 9 + 27 + ------- + 729? \n" ); document.write( "
Algebra.Com's Answer #661794 by ikleyn(52793)\"\" \"About 
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\n" ); document.write( "If you don't know how to calculate the sum of a GP, look into the 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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