You have a number of identical 450.0 Ω resistors. a) There is one way in which three of these resistors can be wired to give an equivalent resistance of 300.0 Ω. What is it? b) There are two ways in which six of these resistors can be wired to provide an equivalent resistance of 300.0 Ω. What are they? In both parts a) and b) show calculations to support your answer.