3. Express the following functions in terms of O- notation. (n+8)(n + 1), In log n + n2)(n3 + 2), and (n! + 2") (n+ log(n? + 1) You must show/explain how you arrived at the answers. Simply stating the answers will result in 0 points awarded. (5 points each, 15 points in total.) a. (n2 + 8)(n + 1) b. In log n + n2)(n3 + 2) C. (n! + 2")(n+ log(n+ 1))