document.write( "Question 206225: Hi all, I have a Matrix problem that I am not quite sure of how to solve.
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document.write( "For the given matrix A:
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document.write( "(1 2 3)
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document.write( "(2 1 -1)
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document.write( "(2 0 1)
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document.write( "a) Write the matix 4a. (Does this just mean I solve it by multiplying each number by 4?) and
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document.write( "b) Use matrix multiplication to find A^2 = AA.
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document.write( "Any help would be most appreciated.
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document.write( "Thanks, -Nick. \n" );
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Algebra.Com's Answer #155796 by Alan3354(69443)![]() ![]() 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( "a) Write the matix 4a. (Does this just mean I solve it by multiplying each number by 4?) \n" ); document.write( "That's it. 4 times each element. \n" ); document.write( "---------------- \n" ); document.write( " and \n" ); document.write( "b) Use matrix multiplication to find A^2 = AA. \n" ); document.write( "|11 4 4| \n" ); document.write( "|+2 5 4| \n" ); document.write( "|+4 4 7| \n" ); document.write( " |