document.write( "Question 1196243: If $\"M\"$ $\"%22%22=%22%22\"$ $\"%28matrix%283%2C3%2C1%2C-1%2Ck%2C4%2C7%2C3%2C-1%2C12%2C-2%29%29\"$
\n" ); document.write( "Evaluate in term of k the determinant of M.
\n" ); document.write( "Hence, if $\"X\"$ $\"%22%22=%22%22\"$ $\"%28matrix%283%2C1%2Cx%2Cy%2Cz%29%29\"$ ,
\n" ); document.write( "Solve the equation $\"MX\"$ $\"%22%22=%22%22\"$ $\"%28matrix%283%2C1%2C1%2C11%2C21%29%29\"$
\n" ); document.write( "when k = 2, by the cofactor method. \n" ); document.write( "

Algebra.Com's Answer #831040 by ikleyn(52786) $\"\"$ $\"About$

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