document.write( "Question 481815: Use the formula for the sum of the first n terms of a geometric sequence to solve.\r
\n" ); document.write( "\n" ); document.write( "Find the sum of the first 11 terms of the geometric sequence 4,-12,36,-108....
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Algebra.Com's Answer #329874 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
 
\n" ); document.write( "Hi,
\n" ); document.write( "geometric sequence: {4,-12,36,-108,...} r = -3
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\n" ); document.write( "\"s%5B11%5D=4%2A%281-%28-3%29%5E11%29%2F%284%29=+highlight%28177148%29\"
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