document.write( "Question 9439: , show that a characterestic polynomial is always monic.\r
\n" ); document.write( "\n" ); document.write( "please help me solving the above problem.
\n" ); document.write( " thank you
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Algebra.Com's Answer #5196 by khwang(438)\"\" \"About 
You can put this solution on YOUR website!
You should mention about your definition of characteristic polynomial.\r
\n" ); document.write( "\n" ); document.write( " Is it about a linear operator a square matrix, etc?\r
\n" ); document.write( "\n" ); document.write( " You cannot assume study the same material or textbook as you right now.\r
\n" ); document.write( "\n" ); document.write( " In general, char(T) or char(A) = det(xI - T) or det(xI - A)
\n" ); document.write( " and very clearly the leading coefficient is 1 and so it is monic.\r
\n" ); document.write( "\n" ); document.write( " You may need to use similar matrices i.e.
\n" ); document.write( " det(xI - A) = det(xI - P^-1 B P) = det(P^-1)det(xI - B) det(P)
\n" ); document.write( " = det(xI - B)\r
\n" ); document.write( "\n" ); document.write( " Kenny
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