If the eigen value of the matrix is 1, 2 and 3 then find the eigen value of following:
(b) A2 + 4A + I
Sir, |A| will be 6 in the above example as product of eigen values = |A|
If A^-1 |A| the it should be 6,6/1,6/3 for Adj(A)
|A| = 6 as |A| = product of eigen values.