Series & Sums For each of the following sequences: identify if the sequence is arithmetic, geometric or quadratic1. Justify your response. Assuming the first term of each sequence isa1, give an expression for ai. (In other words, find a formula for the i-th term in the sequence). if the sequence is arithmetic or geometric, compute the sum of the first 10 terms in the sequence. Show your work. If the sequence is quadratic, then show the work used to compute your answer to the second bullet. (a) 3,15,75,375,... (b). 0,4,11,21, ... (c) -6,1,8,15,...