1,034 views

Let A be 3x3 matrix. Suppose 1 and -1 are two of the three Eigen Values of A and 18 is one of the Eigen Values of A2+3A. Then____

a.) Both A and A2+3A are invertible.

b.) A2+3A but A is not.

c.) A is invertible but A2+3A is not invertible.

d.) Both A and A2+3A are not invertible.

I am getting A..what is the answer?

## .

How you get $\lambda _{3}$ $= -6 or 3$ for A
how???

1
425 views
1 vote