document.write( "Question 1129413: Evaluate the determinant, using row or column operations whenever possible to simplify your work.\r
\n" ); document.write( "\n" ); document.write( "[0 0 4 6]
\n" ); document.write( "[2 1 1 3]
\n" ); document.write( "[2 1 2 3]
\n" ); document.write( "[3 0 1 7]
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #746001 by Alan3354(69443) $\"\"$ $\"About$

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Evaluate the determinant, using row or column operations whenever possible to simplify your work.\r
\n" ); document.write( "\n" ); document.write( "[0 0 4 6]
\n" ); document.write( "[2 1 1 3]
\n" ); document.write( "[2 1 2 3]
\n" ); document.write( "[3 0 1 7]
\n" ); document.write( "---------------
\n" ); document.write( "Row 1 has 2 zeroes, makes it easy.
\n" ); document.write( "----
\n" ); document.write( "4 times
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document.write( "|2   1   3|\r\n" );
document.write( "|2   1   3|\r\n" );
document.write( "|3   0   7|\r\n" );
document.write( "2 equal rows --> 0\r\n" );
document.write( "4*0 = 0\r\n" );
document.write( "========================\r\n" );
document.write( "-6 times\r\n" );
document.write( "|2   1   1|\r\n" );
document.write( "|2   1   2|\r\n" );
document.write( "|3   0   1|\r\n" );
document.write( "= -6*(2*(1-0) - 1*(2-6) + 1*(0-3))\r\n" );
document.write( "= -6*(2 + 4 - 3)\r\n" );
document.write( "= -18\r\n" );
document.write( "

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\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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