# Other questions and answers in March 2021 — Page 3

Please include working :) The Fibonacci numbers are defined as follows: Fo = F1 = 1 and for every i 2 2, Fi = Ful+ Fi-2. We thus get the sequence 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, ... Prove by inducti... Discrete Mathematics 3) Let A = {1, 3, 5, 8, 11}, B = {1, 2, 4, 5, 8, 9, 11, 12}, and C = {1, 3, 5, 9, 13} Find the following sets a) A ∪ C b) A ∩ B ∩ C c) A − (B − C)