document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1140234>Question 1140234</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sn is the sum of the first n terms of a series given by Sn=n^2-1. Find the nth term. </SPAN>\n" );
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document.write( "The n-th term is the difference between the sum of the first (n-1) terms and the sum of the first n terms.<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%28n%29+=+S%28n%29-S%28n-1%29+=+%28n%5E2-1%29-%28%28n-1%29%5E2-1%29+=+%28n%5E2-1%29-%28n%5E2-2n%29+=+2n-1 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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