document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=33970>Question 33970</A>: <I><SPAN STYLE=\"word-break: break-all;\"> (1)A=[-3  2]   B= [0  2]   (find AB and BA if possible)<BR>\n" );
document.write( "     [2  -2]      [-2 4]\r<BR>\n" );
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document.write( "(2)A=[-2  3]   B=[ 3 ]    (find AB if possible)<BR>\n" );
document.write( "     [1  -2]     [-2 ]    <BR>\n" );
document.write( "     [0   0]\r<BR>\n" );
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document.write( "(3)A=[2 -2 4]  B=[2 1 -3 0]<BR>\n" );
document.write( "     [1 0 -1]   [0 -2 1 -2]   (find AB if possible)<BR>\n" );
document.write( "     [2 1  3]    [1 -1 0 2]\r<BR>\n" );
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document.write( "I am having trouble with these problems i hope you can help me\r<BR>\n" );
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document.write( "thank you <BR>\n" );
document.write( "Brittny </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #21616 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=21616\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> THEY ARE ALL OF SAME MODEL .I WILL SHOW YOU ONE .YOU TRY OTHERS.COME BACK IF IN DIFFICULTY.<BR>\n" );
document.write( "(1)A=[-3 2] B= [0 2] (find AB and BA if possible)<BR>\n" );
document.write( "[2 -2] [-2 4]<BR>\n" );
document.write( "FIRST CHECK COMPATABILITY...THAT IS FIND THE ORDER OF A (M,N) = (2,2) MATRIX HERE.<BR>\n" );
document.write( "AND ORDER OF B (P,Q)= (2,2)..N SHOULD EQUAL P .THEN WE SAY THEY ARE COMPATABLE AND THEY CAN BE MULTIPLIED.OTHERWISE NOT.THE ANSWER WILL BE C (M,Q) MATRIX THEN .HERE WE HAVE N=2=P...SO THEY ARE COMPATABLE AND CAN BE MULTIPLIED.THE NSWER WILL BE M=2 AND Q=2...THAT IS C(2,2)MATRIX<BR>\n" );
document.write( "NEXT HOW DO WE FIND C =....<BR>\n" );
document.write( "E11,E12<BR>\n" );
document.write( "E21,E22<BR>\n" );
document.write( "E11 IS OBTAINED BY MULTIPLYING EACH ELEMENT OF ROW 1 OF A WITH EACH ELEMENT OF COLUMN 1 OF B AND ADDING THEM UP.THAT IS <BR>\n" );
document.write( "E11=-3*0+2*-2=-4<BR>\n" );
document.write( "E12 IS OBTAINED BY MULTIPLYING EACH ELEMENT OF ROW 1 OF A WITH EACH ELEMENT OF COLUMN 2 OF B AND ADDING THEM UP.THAT IS <BR>\n" );
document.write( "E12=-3*2+2*4=2<BR>\n" );
document.write( "E21 IS OBTAINED BY MULTIPLYING EACH ELEMENT OF ROW 2 OF A WITH EACH ELEMENT OF COLUMN 1 OF B AND ADDING THEM UP.THAT IS <BR>\n" );
document.write( "E21=2*0+-2*-2=4<BR>\n" );
document.write( "E22 IS OBTAINED BY MULTIPLYING EACH ELEMENT OF ROW 2 OF A WITH EACH ELEMENT OF COLUMN 2 OF B AND ADDING THEM UP.THAT IS <BR>\n" );
document.write( "E22=2*2+-2*4=-4<BR>\n" );
document.write( "HENCE THE ANSWER IS C=<BR>\n" );
document.write( "-4,2<BR>\n" );
document.write( "4,-4<BR>\n" );
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document.write( "(2)A=[-2 3] B=[ 3 ] (find AB if possible)<BR>\n" );
document.write( "[1 -2] [-2 ]<BR>\n" );
document.write( "[0 0]<BR>\n" );
document.write( "(3)A=[2 -2 4] B=[2 1 -3 0]<BR>\n" );
document.write( "[1 0 -1] [0 -2 1 -2] (find AB if possible)<BR>\n" );
document.write( "[2 1 3] [1 -1 0 2]  </SPAN>\n" );
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