document.write( "Question 599642: Find the number of terms. Use the sum formula.
\n" ); document.write( "1+2+4+...+2048
\n" ); document.write( "2048=1*2^n-1
\n" ); document.write( "2048=2^n-1
\n" ); document.write( "I don't know where to go from here.
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Algebra.Com's Answer #379022 by Alan3354(69443)\"\" \"About 
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Find the number of terms. Use the sum formula.
\n" ); document.write( "1+2+4+...+2048
\n" ); document.write( "2048=1*2^n-1
\n" ); document.write( "2048=2^n-1
\n" ); document.write( "I don't know where to go from here.
\n" ); document.write( "-------
\n" ); document.write( "\"2048+=+2%5E11\"
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