6. Let {an} be a sequence defined recursively by a1 = 1 an+1 = V6 +5an, n = 1, 2,3, ... SEE Def 7.2) (a) Provide the first five terms of {an} (b) Use the Principle of Mathematical Induction to prove that this se- quence is (strictly) bounded above by 6, i.e., prove that an