##### Lecture on Eigen Vectors
Content covered:

The eigen value of matrix $A= \begin{bmatrix} 1 & 2\\ 0 & 2\\ \end{bmatrix}$are written in the form $\begin{bmatrix} 1\\ a\end{bmatrix}$and $\begin{bmatrix} 1\\ b \end{bmatrix}$ then, what will be the value of $a$  and  $b$?