document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=985689>Question 985689</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Forgive me, but I forgot to ask which of these matrices can be self-multiplied?\r<BR>\n" );
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document.write( "Given matrices: <BR>\n" );
document.write( "A: [3] \r<BR>\n" );
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document.write( "B:[2 9] \r<BR>\n" );
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document.write( "C: [2 4 -3<BR>\n" );
document.write( "....-2 3 0] \r<BR>\n" );
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document.write( "D: [ 3 2<BR>\n" );
document.write( "......3 2<BR>\n" );
document.write( "......3 2] \r<BR>\n" );
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document.write( "E: [-8 -2<BR>\n" );
document.write( "......0 0] \r<BR>\n" );
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document.write( "F: [ 2 3 4 5 6 7 9] \r<BR>\n" );
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document.write( "G: <BR>\n" );
document.write( "[3<BR>\n" );
document.write( "2<BR>\n" );
document.write( "1<BR>\n" );
document.write( "0<BR>\n" );
document.write( "9<BR>\n" );
document.write( "8<BR>\n" );
document.write( "7] \r<BR>\n" );
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document.write( "Thank you in advanced for your help and time.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #606509 by </B><A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><B>Edwin McCravy(20056)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><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=Edwin+McCravy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=606509\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\"><BR>\n" );
document.write( "Only square matrices can be self-multiplied,\r<BR>\n" );
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document.write( "So only A and E are square, the DOWN number and the ACROSS number are the same.\r<BR>\n" );
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document.write( "A's dimension is 1x1 and E's is 2x2.\r<BR>\n" );
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document.write( "Edwin </SPAN>\n" );
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