Left eigenvector properties. Suppose w is a left eigenvector of A = Rnxn with real negative eigenvalue λ. (a) Find a simple expression for weAt α (b) Let a <3. The set {z a≤wz≤ẞ} is referred to as a slab. Briefly explain this terminology. Draw a picture in R². (c) Show that the slab {z | 0<wz <ẞ} is invariant for x = Ax.