How to find #a#,such that #BC=I_3#?;#A=((1,3,2),(3,9,6),(2,6,4));B=I_3+A;C=I_3+aA;a inRR#
1 Answer
Apr 4, 2017
Explanation:
Matrix
then
so
Taking this last relationship and multiplying it by
now comparing the characteistic polynomial equation with this last equation we conclude