Define the vector v = [8 6 4 2]. Then use the vector in a mathematical expression to create the following vectors:
(a) a = [1 1 1 1]
(b) b = [1/82 1/62 1/42 1/22]
(c) c = [1/√8 1/√6 1/√4 1/√2]
(d) d = [3 1 -1 -3]