150ml 1. Consider the matrix -11 -1 0 0 0 0 1 0 where a R is a parameter. (1) Find for which values of a matrix A. is diagonalisable; (25 MARKS) (2) For all the values of a for which A. is not diagonalisable, determine the Jordan form of A (10 MARKS) (3) For a value of a of your choice for which A. is not diagonalisable, find the change of basis matrix P that brings A, to its Jordan form. (15 MARKS)