document.write( "Question 1025112: Please help me this problem is driving me crazy.\r
\n" ); document.write( "\n" ); document.write( "Write the sum using sigma notation: \r
\n" ); document.write( "\n" ); document.write( "1/1⋅2+1/2⋅3+1/3⋅4+⋯+1/219⋅220=
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\n" ); document.write( ", where \r
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\n" ); document.write( "\n" ); document.write( "B=
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Algebra.Com's Answer #640449 by ikleyn(52788)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "Please help me this problem is driving me crazy.\r
\n" ); document.write( "\n" ); document.write( "Write the sum using sigma notation: \r
\n" ); document.write( "\n" ); document.write( "1/1⋅2+1/2⋅3+1/3⋅4+⋯+1/219⋅220=
\n" ); document.write( "A
\n" ); document.write( "∑ B
\n" ); document.write( "n=1
\n" ); document.write( ", where \r
\n" ); document.write( "\n" ); document.write( "A=
\n" ); document.write( " \r
\n" ); document.write( "\n" ); document.write( "B=
\n" ); document.write( "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\r
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document.write( "A = 219.\r\n" );
document.write( "\r\n" );
document.write( "B = \"%281%2Fn-1%2F%28n%2B1%29%29\",\r\n" );
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