For the sequences below, find the formula for the nth term. After finding the nth term formula, use Matlab and Excel to evaluate both sequences up to n=25. a.) 1/1, 8/2, 81/9, 1024/64, 15625/625 ... = b.) 1/1, 2/2, 6/4, 24/8, 120/16 ... = c.) 4/1 - 4/3 + 4/5 - 4/7 + 4/9 .. = For the following Venn Diagrams write the set denoted by the shaded area