Let $A$ be the matrix in $M_{2}(\mathbf{R})$ defined by: $$A = \left(\begin{array}{cc} 1 & 1 \\ -1 & 3 \end{array}\right)$$ Is the matrix $A$ semi-simple?
Let $A$ be the matrix in $M_{2}(\mathbf{R})$ defined by:
$$A = \left(\begin{array}{cc} 1 & 1 \\ -1 & 3 \end{array}\right)$$
Is the matrix $A$ semi-simple?