document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=47751>Question 47751</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am having trouble finding the determinant on a 4x4 matrix/Triangular Form. Please explain...\r<BR>\n" );
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document.write( "4  0  3 -2<BR>\n" );
document.write( "3  1  2 -1<BR>\n" );
document.write( "1 -6 -2  2     D = 39<BR>\n" );
document.write( "2  2  0 -1  \r<BR>\n" );
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document.write( "I tried exchanging Rows 3 and 4 over 1 and 2 but I can't get the 39. What should I remember when dealing with this form? Thanks a lot. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #31574 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=31574\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> That depends on what you have learned.<BR>\n" );
document.write( "I would suggest you expand the determinant<BR>\n" );
document.write( "by minors; then do the arithmetic on the <BR>\n" );
document.write( "resulting 3 by 3 determinants.<BR>\n" );
document.write( "Have you learned how to do that?<BR>\n" );
document.write( "39 is the correct answer.<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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