The sequence ... Is given. Part A: Assuming the pattern continues, list the next four terms in the sequence. Show all necessary math work. (4 points) Part B: Write the explicit equation for f (n) to represent the sequence. Show all necessary math work. (4 points) Part C: Is the sign of f (56) positive or negative? Justify your reasoning mathematically without determining the value of f (56). = Q * Source V C