I have learned a shortcut for finding eigen values and characteristic equation. It is as follows. $\lambda ^{_{3}}- \alpha \lambda ^{2}+ \beta \lambda - \gamma =0$ where $ \alpha =$ trace of 3*3 matrix $ \beta =$ sum of cofactor of diagonal elements $ \gamma =$ det of 3*3 matrix when I follow this logic in the below problem I'm stuck, Could any one help me find why I'm stuck . I was getting answer using this trick for almost all problems
23398 Points
17078 Points
8264 Points
6296 Points
5438 Points
4978 Points
4772 Points
4348 Points
3964 Points
3804 Points
Gatecse
X->YZ , Y->XZ , ...