document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=70442>Question 70442</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello. I have just started a new math class, and the teacher is very hard to understand. When someone asks him a question, he thinks they are making fun of his accent. I am trying to a few things out but cannot. He gives us sample problems and does not even go out of a book. The problem directions are Find <BR>\n" );
document.write( "A-1 and check your answer. The problem is <BR>\n" );
document.write( "A= (1  -2  3)  <BR>\n" );
document.write( "   (-1  0  2)<BR>\n" );
document.write( "   (4   1  5)<BR>\n" );
document.write( " Could someone show me the formula for this problem, and perhaps lead me through it? I am lost and do not want to drop this class. Thanks in advance. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #50345 by </B><A HREF=/tutors/aboutme.mpl?userid=venugopalramana><B>venugopalramana(3286)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=venugopalramana><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.geocities.com/venugopalramana/FREE_MATHS_ASSISTANCE.html valign=middle><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=50345\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hello. I have just started a new math class, and the teacher is very hard to understand. When someone asks him a question, he thinks they are making fun of his accent. I am trying to a few things out but cannot. He gives us sample problems and does not even go out of a book. The problem directions are Find<BR>\n" );
document.write( "A-1 and check your answer. The problem is<BR>\n" );
document.write( "A= (1 -2 3)<BR>\n" );
document.write( "(-1 0 2)<BR>\n" );
document.write( "(4 1 5)<BR>\n" );
document.write( "WHAT IS A? IS IT A MATRIX ..ASSUMING SO...<BR>\n" );
document.write( "THEN IS IT A-1 OR A-I?...IF A IS A MATRIX , IT MAKES BETTER SENSE IF IT IS A-I<BR>\n" );
document.write( "I IS UNIT MATRIX ..WE TAKE IT AS SAME ORDER AS A...THAT IS IT WILL 3 ROWS AND 3 COLUMNS..I=<BR>\n" );
document.write( "1,0,0<BR>\n" );
document.write( "0,1,0<BR>\n" );
document.write( "0,0,1<BR>\n" );
document.write( "THEN A-I =...SUBTRACT EACH ELEMENT OF I FROM ITS CORRESPONDING ELEMENT IN A  <BR>\n" );
document.write( "1-1,-2-0,3-0<BR>\n" );
document.write( "-1-0,0-1,2-0<BR>\n" );
document.write( "4-0,1-0,5-1\r<BR>\n" );
document.write( "\n" );
document.write( "= <BR>\n" );
document.write( "0,-2,3<BR>\n" );
document.write( "-1,-1,2<BR>\n" );
document.write( "4,1,4\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Could someone show me the formula for this problem, and perhaps lead me through it? I am lost and do not want to drop this class. Thanks in advance. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );