estimate fusing Big-o For each of the following functions f, wheren -0, 1, 2, 3, notation and plain English: a?f(n) = (2 + n) * (3 + log(n)) b.f(n)-1 *log(n) + n/2-3452 d.fin)-+ n)-7* e.fn) = 7 * n + (n-1) * log (n-4) f.fn) - log (n') + n (n +I) *log (n + I) -(n +I)+I g.f(n) h. f(n) nn/2 n/4 n/8+n/16+