document.write( "Question 1066290: What is the determinant of the following matrix?\r
\n" ); document.write( "\n" ); document.write( "3 1
\n" ); document.write( "-4 1\r
\n" ); document.write( "\n" ); document.write( "A. -13
\n" ); document.write( "B. 7
\n" ); document.write( "C. -1
\n" ); document.write( "D. 12
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Algebra.Com's Answer #681527 by ikleyn(52824)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "On determinant of 2x2-matrices read the lesson\r
\n" ); document.write( "\n" ); document.write( "    - Determinant of a 2x2-matrix \r
\n" ); document.write( "\n" ); document.write( "in this site.\r
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\n" ); document.write( "\n" ); document.write( "Read the definition of the determinant and how to calculate it.
\n" ); document.write( "After reading calculate your determinant.
\n" ); document.write( "And do not say that you don't know how to do it.\r
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\n" ); document.write( "\n" ); document.write( "If after reading the lesson you are not able to compute the determinant, it means that you are in wrong class.\r
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