document.write( "Question 843411: 1+2+4+8+16+32+...+65,536 Find the sum of each sequence of numbers. Help? \n" ); document.write( "
Algebra.Com's Answer #508570 by KMST(5328)\"\" \"About 
You can put this solution on YOUR website!
That is a geometric series,
\n" ); document.write( "the sum of the first 17 terms of the form
\n" ); document.write( "\"b%5Bn%5D=2%5E%28n-1%29\" ,
\n" ); document.write( "because \"2%5E16=2%5E4%2A2%5E10=64%2A1024=65536\" .
\n" ); document.write( "That sum is \"SUM=1%2B2%2B2%5E2%2B2%5E3%2B%22...%22%2B2%5E16\" and
\n" ); document.write( "\"2%2ASUM=2%2B2%5E2%2B2%5E3%2B%22...%22%2B2%5E16%2B2%5E17\" , so
\n" ); document.write( "\"2%2ASUM-SUM=2%5E17-1\"
\n" ); document.write( "\"%282-1%29%2ASUM=131072-1\"
\n" ); document.write( "\"SUM=highlight%28131071%29\"
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\n" ); document.write( "NOTE:
\n" ); document.write( "Your teacher/instructor may insist on seeing formulas, such as
\n" ); document.write( "\"sum%28b%5B0%5D%2Ar%5E%28n-1%29%2C+1%2Cn%29=b%5B0%5D%2A%28r%5En-1%29%2F%28r-1%29\" , or \"SUM%5Bn%5D=b%5B0%5D%2A%28r%5En-1%29%2F%28r-1%29\" .
\n" ); document.write( "Humoring teachers and bosses may be essential to survival,
\n" ); document.write( "but I do not believe math is about memorizing.
\n" ); document.write( "Remembering ideas that led others to a way to calculate results is OK.
\n" ); document.write( "That way we do not have to rediscover gunpowder every time,
\n" ); document.write( "but I refuse to memorize.
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