1. Refer to the following sequences in R: (an) : 8,0.104, 0.01352, 0.017576, 0.228488, ... 10 79 bn) :7 70 29 37 8 35 70 ' 35 . . (Cn) :-2.3, -0.2, 1.9, 4, 6.1, ... (dn) : = 1, 2, 4, 7, 28, 33,... (en) := 2V6, 612,616,18V2, 1816, 54V2, ... a. [5pts] Determine which of the above sequences is(are) * arithmetic (then, give the common difference), *geometric (then, give the common ratio), or * neither (then, give the formula or explain the pattern) b. [10pts] Take two arithmetic sequences from the list above and show that as sets, these two are equinumerous. Hint: Assume that the terms of each sequence are the elements of sets X and Y, respectively. Then, define a function f: X->Y and prove that f is bijective