document.write( "Question 422414: The sum of a finite geometric sequence for n terms with common ratio r and initial term a1 is:\r
\n" ); document.write( "\n" ); document.write( "s(n)=a1 (1-r^n/1-r)\r
\n" ); document.write( "\n" ); document.write( "Find the sum of the first 10 terms of 4, 2, 1, 1/2, 1/4\r
\n" ); document.write( "\n" ); document.write( "I am EXTREMELY stuck and don't know where to even begin! All help is greatly appreciated! thanks!
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Algebra.Com's Answer #294997 by richard1234(7193)\"\" \"About 
You can put this solution on YOUR website!
I agree with the other tutor. You have \"a%5B1%5D+=+4\", \"r+=+1%2F2\" because the ratio between successive terms is 1/2, and \"n+=+10\" because there are ten terms. Now it's just replacing numbers into a formula; it shouldn't get you extremely (or EXTREMELY) stuck. \n" ); document.write( "
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