document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1031344>Question 1031344</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The estimated value of the integral from 1 to 3 of x squared dx , using the trapezoidal rule with 4 trapezoids is \r<BR>\n" );
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document.write( " 17.50\r<BR>\n" );
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document.write( " 11.25\r<BR>\n" );
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document.write( " 8.75\r<BR>\n" );
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document.write( " 5.63 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #646625 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=646625\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 8.75 \r<BR>\n" );
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document.write( "The trapezoidal approximation would be\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%283-1%29%2F%282%2A4%29%29%28f%281%29+%2B+2f%281.5%29%2B+2f%282%29+%2B+2f%282.5%29%29+%2Bf%283%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.25%281%5E2+%2B2%281.5%29%5E2+%2B+2%282%29%5E2+%2B+2%282.5%29%5E2+%2B+3%5E2%29 ALIGN=MIDDLE  ALT=\"0.25%281%5E2+%2B2%281.5%29%5E2+%2B+2%282%29%5E2+%2B+2%282.5%29%5E2+%2B+3%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "= 0.25(1+4.5+8+12.5+9) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%288.75%29 ALIGN=MIDDLE  ALT=\"highlight%288.75%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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