- #1

- 462

- 11

## Homework Statement

r1= 2 7

r2=-1 -6

## Homework Equations

A-lambda*I=0

(A-lambda*I)*x=0

## The Attempt at a Solution

I have got following eigen values:

lambda1 = -5 and lambda2=1

A-lambdaI matrix is:

r1 = 7 7

r2 = -1 -1

and x matrix is:

r1 =x

r2 =y

I cant understand why we have to use augmented matrix in this case.

Some body please guide me.

Zulfi.