document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=21174>Question 21174</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi..I have one more problem..and I don't even know where to start..\r<BR>\n" );
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document.write( "I'm given..<BR>\n" );
document.write( " A=[0, -1, 0, 4, 0, 2, 8, 1, 7]; B=[2, 1, -3, 4, 1, 6] \r<BR>\n" );
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document.write( "  (a) Find 3A-2B\r<BR>\n" );
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document.write( "  (b) Find AB\r<BR>\n" );
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document.write( "Please help!<BR>\n" );
document.write( "Cecilia </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #11846 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=11846\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A=[0, -1, 0, 4, 0, 2, 8, 1, 7]; B=[2, 1, -3, 4, 1, 6] <BR>\n" );
document.write( "(a) Find 3A-2B <BR>\n" );
document.write( "(b) Find AB <BR>\n" );
document.write( "3A MEANS MULTIPLY EACH ELEMENT IN A WITH 3...ALSO IN SETS REPETETIVE ELEMENTS DO NOT MATTER AND THEY CAN BE DROPPED.FURTHER,THE SEQUENCE OF PLACING THE ELEMENTS CAN BE CHANGED AS DESIRED.SO<BR>\n" );
document.write( "A=[0,-1,4,2,8,7]..ALSO IT IS A GOOD PRACTICE TO PUT THE ELEMENTS IN SOME ORDER ..SAY INCREASING ORDER..SO WE GET <BR>\n" );
document.write( "A=[-1,0,2,4,7,8]..NOW 3A =[3*-1,3*0,3*2,3*4,3*7,3*8]=[-3,0,6,12,21,24]<BR>\n" );
document.write( "SIMILARLY 2B=[-6,2,4,8,12]<BR>\n" );
document.write( "NOW X-Y MEANS SET OF ALL THOSE ELEMENTS IN A WHICH ARE NOT PRESENT IN Y ..SO <BR>\n" );
document.write( "3A-2B=[-3,0,6,12,21,24]-[-6,2,4,8,12]=[-3,0,6,21,24]..SINCE -3 IS IN 3A BUT NOT IN 2B...ETC..WHERE AS 12 IS IN 3A AND 2B ..HENCE IT IS NOT IN THE ANSWER.NOTE THAT THIS - IS DIFFERENT FROM FROM WE DO IN ARITHMATIC.\r<BR>\n" );
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document.write( "BY AB YOU MEAN AXB I THINK OR CARTESIAN PRODUCT OF 2 SETS.IT IS SET OF ALL POSSIBLE ORDERED PAIRS WITH ELEMENTS OF A AS THE FIRST  ELEMENT AND ELEMENTS OF B AS THE SECOND ELEMENT...SO WE GET <BR>\n" );
document.write( "AXB=[-1,0,2,4,7,8]X[-3,1,2,4,6]=[(-1,-3),(-1,1),(-1,2),(-1,4),(-1,6),(0,-3),(0,1),(0,2),(0,4),(0,6),(2,-3)........ETC...YOU CAN COMPLETE I SUPPOSE .... </SPAN>\n" );
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