(3) Suppose that f (A) is a function of a Hermitian operator A with the property Ala') = a'la'). Evaluate (b\" | f (A)|b") when the transformation matrix from the a' basis to the 19" basis is known. (b) Using the continuum analogue of the result obtained in (a), evaluate (p\"IF(r)lp'). Simplify your expression as far as you can. Note that r is \\sz + y2 + zz, where x, y, and z are operators