document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=553900>Question 553900</A>: <I><SPAN STYLE=\"word-break: break-all;\"> decide whether the sequence is arithmetic, geometric, or neither. Explain your answer.\r<BR>\n" );
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document.write( "24. 6, 24, 96, 384...<BR>\n" );
document.write( "25. 1,3,7,13...<BR>\n" );
document.write( "26. 4, 13, 22, 31...<BR>\n" );
document.write( "27. 3, -1, -5, -9...<BR>\n" );
document.write( "28. -11, -7, -3, 1...<BR>\n" );
document.write( "29. 1/2, 3/2, 9/2, 27/2...<BR>\n" );
document.write( "30. 1/3, 2/3, 1, 4/3...<BR>\n" );
document.write( "31. -3/4, 1/8, -1/16, 3/32...<BR>\n" );
document.write( "32. -3/5, 4/25, 5/125, 6/625...\r<BR>\n" );
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document.write( "find the common ratio of the geometric sequence\r<BR>\n" );
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document.write( "33. 1,4,16,64...<BR>\n" );
document.write( "34. 3,6,12,24...<BR>\n" );
document.write( "35. -3,6,-12, 24...<BR>\n" );
document.write( "36. 5,40,320,2560...<BR>\n" );
document.write( "37. 136,68,34,17...<BR>\n" );
document.write( "38. -1/4,1/8, -1/16,1/32...\r<BR>\n" );
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document.write( "write a rule for the nth term of the geometric sequence. then fina a6.\r<BR>\n" );
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document.write( "39. 1,-4,16,-64...<BR>\n" );
document.write( "40. 5,10,20,40...<BR>\n" );
document.write( "41. 2,14,98,686<BR>\n" );
document.write( "42. 6,-30,150,-750...<BR>\n" );
document.write( "43. 5,-5/3,5/9,-5/27...<BR>\n" );
document.write( "44. 2,4/3,8/9,16/27\r<BR>\n" );
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document.write( "please show ur work,, thanks for ur help! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #361148 by </B><A HREF=/tutors/aboutme.mpl?userid=KMST><B>KMST(5328)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KMST><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=KMST><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=361148\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 24. 6, 24, 96, 384...<BR>\n" );
document.write( "The differences between consecutive terms are not the same, so it's not an arithmetic sequence:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=24-6=18 ALIGN=MIDDLE  ALT=\"24-6=18\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=96-24=72 ALIGN=MIDDLE  ALT=\"96-24=72\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The ratio of consecutive terms is constant:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=24%2F6 ALIGN=MIDDLE  ALT=\"24%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=96%2F24 ALIGN=MIDDLE  ALT=\"96%2F24\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=384%2F96 ALIGN=MIDDLE  ALT=\"384%2F96\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4 ALIGN=MIDDLE  ALT=\"4\"   DISABLED_style= \"max-width:90%; height:auto;\" > So it is a geometric sequence with common ratio = 4. <BR>\n" );
document.write( "25. 1,3,7,13... has neither common difference, nor common ratio<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3-1=2 ALIGN=MIDDLE  ALT=\"3-1=2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7-3=4 ALIGN=MIDDLE  ALT=\"7-3=4\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=13-7=6 ALIGN=MIDDLE  ALT=\"13-7=6\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> not an arithmetic sequence<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2F1=3 ALIGN=MIDDLE  ALT=\"3%2F1=3\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%2F3=7%2F3 ALIGN=MIDDLE  ALT=\"7%2F3=7%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=13%2F7=13%2F7 ALIGN=MIDDLE  ALT=\"13%2F7=13%2F7\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> not a geometric sequence<BR>\n" );
document.write( "26. 4, 13, 22, 31...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=13-4=22-13=31-33=9 ALIGN=MIDDLE  ALT=\"13-4=22-13=31-33=9\"   DISABLED_style= \"max-width:90%; height:auto;\" > ---> arithmetic sequence<BR>\n" );
document.write( "27. 3, -1, -5, -9...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-1-%283%291=-1-3=-4 ALIGN=MIDDLE  ALT=\"-1-%283%291=-1-3=-4\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-5-%28-1%29=-5%2B1=-4 ALIGN=MIDDLE  ALT=\"-5-%28-1%29=-5%2B1=-4\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-9-%28-5%29=-9%2B5=-4 ALIGN=MIDDLE  ALT=\"-9-%28-5%29=-9%2B5=-4\"   DISABLED_style= \"max-width:90%; height:auto;\" > -->  arithmetic sequence<BR>\n" );
document.write( "28. -11, -7, -3, 1...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-7-%28-11%291=-7%2B11=4 ALIGN=MIDDLE  ALT=\"-7-%28-11%291=-7%2B11=4\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-3-%28-7%29=-3%2B7=4 ALIGN=MIDDLE  ALT=\"-3-%28-7%29=-3%2B7=4\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1-%28-3%29=1%2B3=4 ALIGN=MIDDLE  ALT=\"1-%28-3%29=1%2B3=4\"   DISABLED_style= \"max-width:90%; height:auto;\" > -->  arithmetic sequence<BR>\n" );
document.write( "29. 1/2, 3/2, 9/2, 27/2...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2F2%29%2F%283%2F2%29 ALIGN=MIDDLE  ALT=\"%281%2F2%29%2F%283%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%289%2F2%29%2F%283%2F2%29 ALIGN=MIDDLE  ALT=\"%289%2F2%29%2F%283%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2827%2F2%29%2F%289%2F2%29 ALIGN=MIDDLE  ALT=\"%2827%2F2%29%2F%289%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3 ALIGN=MIDDLE  ALT=\"3\"   DISABLED_style= \"max-width:90%; height:auto;\" > -->  geometric sequence<BR>\n" );
document.write( "30. 1/3, 2/3, 1, 4/3...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2F3-%281%2F3%29=1-%282%2F3%29=4%2F3-1=1%2F3 ALIGN=MIDDLE  ALT=\"2%2F3-%281%2F3%29=1-%282%2F3%29=4%2F3-1=1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > -->  arithmetic sequence<BR>\n" );
document.write( "31. -3/4, 1/8, -1/16, 3/32...<BR>\n" );
document.write( "the numbers alternate between positive and negative, and so will the difference, so there cannot be a common difference --> not an arithmetic sequence<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2F8%29%2F%28-3%2F4%29=-1%2F6 ALIGN=MIDDLE  ALT=\"%281%2F8%29%2F%28-3%2F4%29=-1%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-1%2F16%29%2F%281%2F8%29=-1%2F2 ALIGN=MIDDLE  ALT=\"%28-1%2F16%29%2F%281%2F8%29=-1%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283%2F32%29%2F%28-1%2F16%29=-3%2F2 ALIGN=MIDDLE  ALT=\"%283%2F32%29%2F%28-1%2F16%29=-3%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> not a geometric sequence<BR>\n" );
document.write( "32. -3/5, 4/25, 5/125, 6/625...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2F25-%28-3%2F5%29=4%2F25%2B15%2F25=19%2F25 ALIGN=MIDDLE  ALT=\"4%2F25-%28-3%2F5%29=4%2F25%2B15%2F25=19%2F25\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2F125-4%2F25=5%2F125-20%2F125=-15%2F125=-3%2F25 ALIGN=MIDDLE  ALT=\"5%2F125-4%2F25=5%2F125-20%2F125=-15%2F125=-3%2F25\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6%2F625-5%2F125=6%2F625-25%2F625=-19%2F625 ALIGN=MIDDLE  ALT=\"6%2F625-5%2F125=6%2F625-25%2F625=-19%2F625\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> not an arithmetic sequence<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%284%2F25%29%2F%28-3%2F5%29=-%284%2F25%29%285%2F3%29=-4%2F15 ALIGN=MIDDLE  ALT=\"%284%2F25%29%2F%28-3%2F5%29=-%284%2F25%29%285%2F3%29=-4%2F15\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%285%2F125%29%2F%284%2F25%29=%285%2F125%29%2A%2825%2F4%29=1%2F4 ALIGN=MIDDLE  ALT=\"%285%2F125%29%2F%284%2F25%29=%285%2F125%29%2A%2825%2F4%29=1%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%286%2F625%29%2F%285%2F125%29=%286%2F625%29%2A%28125%2F5%29=6%2F25 ALIGN=MIDDLE  ALT=\"%286%2F625%29%2F%285%2F125%29=%286%2F625%29%2A%28125%2F5%29=6%2F25\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> not a geometric sequence<BR>\n" );
document.write( "find the common ratio of the geometric sequence <BR>\n" );
document.write( "33. 1,4,16,64...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2F1=16%2F4=64%2F16=4 ALIGN=MIDDLE  ALT=\"4%2F1=16%2F4=64%2F16=4\"   DISABLED_style= \"max-width:90%; height:auto;\" > The common ratio is 4.<BR>\n" );
document.write( "34. 3,6,12,24...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6%2F3=12%2F6=24%2F12=2 ALIGN=MIDDLE  ALT=\"6%2F3=12%2F6=24%2F12=2\"   DISABLED_style= \"max-width:90%; height:auto;\" > The common ratio is 2.<BR>\n" );
document.write( "35. -3,6,-12, 24...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6%2F%28-3%29=%28-12%29%2F6=24%2F%28-12%29=-2 ALIGN=MIDDLE  ALT=\"6%2F%28-3%29=%28-12%29%2F6=24%2F%28-12%29=-2\"   DISABLED_style= \"max-width:90%; height:auto;\" > The common ratio is -2.<BR>\n" );
document.write( "36. 5,40,320,2560... You can do this one.<BR>\n" );
document.write( "37. 136,68,34,17... You can do this one.<BR>\n" );
document.write( "38. -1/4,1/8, -1/16,1/32...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2F8%29%2F%28-1%2F4%29=-%281%2F8%29%284%2F1%29=-1%2F2 ALIGN=MIDDLE  ALT=\"%281%2F8%29%2F%28-1%2F4%29=-%281%2F8%29%284%2F1%29=-1%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-1%2F16%29%2F%281%2F8%29=-%281%2F16%29%288%2F1%29=-1%2F2 ALIGN=MIDDLE  ALT=\"%28-1%2F16%29%2F%281%2F8%29=-%281%2F16%29%288%2F1%29=-1%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2F32%29%2F%28-1%2F16%29=-%281%2F32%29%2816%2F1%29=-1%2F2 ALIGN=MIDDLE  ALT=\"%281%2F32%29%2F%28-1%2F16%29=-%281%2F32%29%2816%2F1%29=-1%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > The common ratio is -1/2.<BR>\n" );
document.write( "write a rule for the nth term of the geometric sequence. Then find <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5B6%5D ALIGN=MIDDLE  ALT=\"a%5B6%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" >. <BR>\n" );
document.write( "39. 1,-4,16,-64...<BR>\n" );
document.write( "First find the common ratio and first term:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-4%29%2F1=-4 ALIGN=MIDDLE  ALT=\"%28-4%29%2F1=-4\"   DISABLED_style= \"max-width:90%; height:auto;\" > The common ratio is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=-4 ALIGN=MIDDLE  ALT=\"r=-4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The first term is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5B1%5D=1 ALIGN=MIDDLE  ALT=\"a%5B1%5D=1\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5Bn%5D=a%5B1%5D%2Ar%5E%28n-1%29 ALIGN=MIDDLE  ALT=\"a%5Bn%5D=a%5B1%5D%2Ar%5E%28n-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > ---> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5Bn%5D=1%2A%28-4%29%5E%28n-1%29 ALIGN=MIDDLE  ALT=\"a%5Bn%5D=1%2A%28-4%29%5E%28n-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5B6%5D=1%2A%28-4%29%5E%286-1%29=1%2A%28-4%29%5E5=1%2A-1024=-1024 ALIGN=MIDDLE  ALT=\"a%5B6%5D=1%2A%28-4%29%5E%286-1%29=1%2A%28-4%29%5E5=1%2A-1024=-1024\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "40. 5,10,20,40... <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5B1%5D=5 ALIGN=MIDDLE  ALT=\"a%5B1%5D=5\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=10%2F5=2 ALIGN=MIDDLE  ALT=\"r=10%2F5=2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5Bn%5D=5%2A2%5E%28n-1%29 ALIGN=MIDDLE  ALT=\"a%5Bn%5D=5%2A2%5E%28n-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5B6%5D=5%2A2%5E%286-1%29=5%2A2%5E5=5%2A32=160 ALIGN=MIDDLE  ALT=\"a%5B6%5D=5%2A2%5E%286-1%29=5%2A2%5E5=5%2A32=160\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "41. 2,14,98,686 You can do this one.<BR>\n" );
document.write( "42. 6,-30,150,-750... You can do this one.<BR>\n" );
document.write( "43. 5,-5/3,5/9,-5/27... <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5B1%5D=5 ALIGN=MIDDLE  ALT=\"a%5B1%5D=5\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=5%2F%28-5%2F3%29=-%285%29%2A%283%2F5%29=-1%2F3 ALIGN=MIDDLE  ALT=\"r=5%2F%28-5%2F3%29=-%285%29%2A%283%2F5%29=-1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5Bn%5D=5%2A%28-1%2F3%29%5E%28n-1%29 ALIGN=MIDDLE  ALT=\"a%5Bn%5D=5%2A%28-1%2F3%29%5E%28n-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5B6%5D=5%2A%28-1%2F3%29%5E%286-1%29=5%2A%28-1%2F3%29%5E5=5%2A%28-1%2F243%29=-5%2F243 ALIGN=MIDDLE  ALT=\"a%5B6%5D=5%2A%28-1%2F3%29%5E%286-1%29=5%2A%28-1%2F3%29%5E5=5%2A%28-1%2F243%29=-5%2F243\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "44. 2,4/3,8/9,16/27  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5B1%5D=2 ALIGN=MIDDLE  ALT=\"a%5B1%5D=2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=%284%2F3%29%2F2=%284%2F3%29%2A%281%2F2%29=2%2F3 ALIGN=MIDDLE  ALT=\"r=%284%2F3%29%2F2=%284%2F3%29%2A%281%2F2%29=2%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5Bn%5D=2%2A%282%2F3%29%5E%28n-1%29 ALIGN=MIDDLE  ALT=\"a%5Bn%5D=2%2A%282%2F3%29%5E%28n-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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