Exercise 2.23 (Special Normal Forms). How many disjunctions (conjunctions)

will be used for the conjunctive (disjunctive) normal forms of the following functions:

1 f = x1 ⊕ x2 ⊕· · ·⊕xn;

2 g = (x1 ∨ x2 ∨ · · · ∨ xn)(x1 ∨ x2 ∨ · · · ∨ xn);

3 h = (x1 ∨ x2 ∨ x3)(x1 ∨ x2 ∨ x3) ⊕ x4 ⊕ x5 ⊕ · · · ⊕ xn. Start your considerations with n = 4, n = 5, n = 6 and try to find a general rule.