document.write( "Question 932512: Problem 47. Consider the geometric sequence P 0 = 2, P1 = 6, P2 = 18,...\r
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\n" ); document.write( "\n" ); document.write( "A. Find that common ratio R \r
\n" ); document.write( "\n" ); document.write( "B. Use the geometric Sequence sum formula to find the sum P0 + P1 +... P20. \r
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Algebra.Com's Answer #566169 by rothauserc(4718)\"\" \"About 
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A) R is P1 / P0 = 6/2 = 3
\n" ); document.write( "B) the sum(S) of the first 20 terms in the given geometric sequence is
\n" ); document.write( "S(20) = a * ( 1 - R^n) / ( 1 - R) where a is P0 and n is 20
\n" ); document.write( "S(20) = 2 * ( 1 - 3^20) / ( 1 - 3) = 3,486,784,400
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