Find the characteristic polynomial of the matrix, using either a cofactor expansion or the special formula...

 

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Find the characteristic polynomial of the matrix, using either a cofactor expansion or the special formula for 3x3 determinants [Note: Finding the characteristic polynomial of a 3x3 matrix is not easy to do with just row operations, because the variable A is involved.] 5 80 Find the characteristic polynomial of the matrix, using either a cofactor expansion or the special formula for 3x3 determinants [Note: Finding the characteristic polynomial of a 3x3 matrix is not easy to do with just row operations, because the variable A is involved.] 5 80

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The given matrix is The characteristic polynomial is given by f1 detA A3 620 f1 det 380 10 ... View the full answer