document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=5740>Question 5740</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I'm having difficulty figuring out determinants for matricies that exceed the normal 3x3 format. The exact matrix is as follows: <BR>\n" );
document.write( "1  2  0  0 <BR>\n" );
document.write( "3 -1  4  5 <BR>\n" );
document.write( "-2 4  1  6<BR>\n" );
document.write( "2 -1 -2 -3\r<BR>\n" );
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document.write( "Our book explains that if two rows or columns of a square matrix A are identical, then the absolute value of A = 0 ... but none of these rows or columns are identical. I have tried the D=a11C11+a21C21+a31C31 and adding in the fourth a41C41, but my answer wasn't correct (understandably so). \r<BR>\n" );
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document.write( "Any piece of information is helpful. Thank you, <BR>\n" );
document.write( "Abby </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #2965 by </B><A HREF=/tutors/aboutme.mpl?userid=khwang><B>khwang(438)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=khwang><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=2965\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  Since the 1st row containing twozeros,<BR>\n" );
document.write( " expanding it along the 1st row, we have<BR>\n" );
document.write( " D = a11C11 - a12C12 = 1*(-20) + (-2)*61 = -142\r<BR>\n" );
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document.write( " Kenny\r<BR>\n" );
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document.write( " </SPAN>\n" );
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