document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=479115>Question 479115</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the following matrices using these operations 5A, A - B, AB, BA\r<BR>\n" );
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document.write( "1. a = [ 1 5 ]           b = [ 8 1 ]\r<BR>\n" );
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document.write( "*they are columns, not rows, i dont know how to make a column. like [ 1 5], it is a column so it's like 1/5\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #328292 by </B><A HREF=/tutors/aboutme.mpl?userid=Tatiana_Stebko><B>Tatiana_Stebko(1539)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Tatiana_Stebko><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=Tatiana_Stebko><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=328292\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5A=5%2A%28matrix%282%2C1%2C1%2C5%29%29=%28matrix%282%2C1%2C1%2A5%2C5%2A5%29%29=%28matrix%282%2C1%2C5%2C25%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A-B=%28matrix%282%2C1%2C1%2C5%29%29-%28matrix%282%2C1%2C8%2C1%29%29=%28matrix%282%2C1%2C1-8%2C5-1%29%29=%28matrix%282%2C1%2C-7%2C4%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%2AB ALIGN=MIDDLE  ALT=\"A%2AB\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B%2AA ALIGN=MIDDLE  ALT=\"B%2AA\"   DISABLED_style= \"max-width:90%; height:auto;\" > are impossible because of the matrix sizes </SPAN>\n" );
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