document.write( "Question 1001260: Summation notation help please!!
\n" ); document.write( "What is the summation notation for the series?
\n" ); document.write( "200+175+150+125+...+(-300)
\n" ); document.write( "What is the sum of the arithmetic series?
\n" ); document.write( "5
\n" ); document.write( "Σ; (3n-2)
\n" ); document.write( "n-1
\n" ); document.write( "What is the sum of the geometric series? Round to the nearest whole number.
\n" ); document.write( "16
\n" ); document.write( "Σ; 6(1/4)^n
\n" ); document.write( "n-1
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Algebra.Com's Answer #618488 by ikleyn(52778)\"\" \"About 
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\n" ); document.write( "What is the sum of the arithmetic series?
\n" ); document.write( "5
\n" ); document.write( "Σ; (3n-2)
\n" ); document.write( "n=1
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\n" ); document.write( "\n" ); document.write( "Arithmetic progression.  The first term \"a%5B1%5D\" = 1.  The common difference is  3.  The last term is  3*5-2 = 13.\r
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\n" ); document.write( "\n" ); document.write( "The sum is  \"%28%28a%5B1%5D%2Ba%5B5%5D%29%2A5%29%2F2\" = \"%28%281+%2B+13%29%2A5%29%2F2\" = 35.\r
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