document.write( "Question 209165: Hi all, I think I know how to do this one, but I just want to make sure.
\n" ); document.write( "For the Given Matrix A:
\n" ); document.write( "(1 2 3)
\n" ); document.write( "(2 1 -1)
\n" ); document.write( "(2 0 1)
\n" ); document.write( "Use matrix multiplication to find A^2 = AA
\n" ); document.write( "Does this mean I just multiply al numbers by themselves? As in First Column First Row * First Column First Row (1*1)? Which is ofcourse equivalent to 1^2.
\n" ); document.write( "Please confirm if this is correct or not.
\n" ); document.write( "Thnaks, -Nick. \n" ); document.write( "
Algebra.Com's Answer #158128 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
For the Given Matrix A:
\n" ); document.write( "(1 2 3)
\n" ); document.write( "(2 1 -1)
\n" ); document.write( "(2 0 1)
\n" ); document.write( "Use matrix multiplication to find A^2 = AA
\n" ); document.write( "Does this mean I just multiply al numbers by themselves? As in First Column First Row * First Column First Row (1*1)? Which is ofcourse equivalent to 1^2.
\n" ); document.write( "Please confirm if this is correct or not.
\n" ); document.write( "--------
\n" ); document.write( "That's not right.
\n" ); document.write( "The 1st element of A*A is (1*1) + (2*2) + (3*2)
\n" ); document.write( "|11 4 4|
\n" ); document.write( "|2 5 4|
\n" ); document.write( "|4 4 7|\r
\n" ); document.write( "\n" ); document.write( "is A*A\r
\n" ); document.write( "\n" ); document.write( "There seems to be a problem with \"Thank You\" notes.
\n" ); document.write( "If you have comments or further questions, email me at
\n" ); document.write( "gsihoutx@aol.com
\n" ); document.write( " \n" ); document.write( "
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