please explain

1. (2 marks for each part) Wright et a1. assume the matching technology in their model is like the standard neoclassical production function increasing, concave and with constant returns to scale. Mingus) is the number of meetings that occur given at, buyers and 11, sellers. They denote the probability that a seller meets a buyer by a(n), where n = 115/113. (i) Derive the a function from the p function. (ii) Prove that the probability that a buyer meets a seller is a(n). (iii) Wright assumes that (1(0) = 0, o/(n) > 0, a\"(n)