document.write( "Question 1122507: find the sum of each of the following G.p's:
\n" ); document.write( "(a)6,12,24,... to 10 terms
\n" ); document.write( "(b)1,-0.5,0.25,0.125... to 20 terms.
\n" ); document.write( "

Algebra.Com's Answer #837566 by mananth(16946)\"\" \"About 
You can put this solution on YOUR website!
\"S%5Bn%5D=+a%5B1%5D%2A%28%281-r%5En%29%2F%281-r%29%29\"\r
\n" ); document.write( "\n" ); document.write( "\"S%5B10%5D=+6%2A%28%281-2%5E10%29%2F%281-2%29%29\"\r
\n" ); document.write( "\n" ); document.write( "\"S%5B10%5D+=+6138\"\r
\n" ); document.write( "\n" ); document.write( "Similarly the next one
\n" ); document.write( "
\n" );