2. (Cycles and annual worth ) Given a cash flow stream X=(x0,x1,x2,,xn), a new stream X of infinite length is made by successively repeating the corresponding finite stream. The interest rate is r. Let P and A be the present value and the annual worth, respectively, of stream X. Finally, let P be the present value of stream X. Find A in terms of P and conclude that A can be used as well as P for evaluation purposes