For ITSC 2175

zyBook Exercises for 10.5-10.7, 10.10, 10.11: Intro to Counting Show your work. At a minimum show the mathematical computation you used. It's fine (and encouraged) to use the r-permutation notation P(n, r) - and r-subset or r-combination notation -- C(n, r) - arithmetic operators, and factorial !). I. Define the set S = a, b, c, d, e, f, g} a. Give an example of a 4-permutation from the set S b. Give an example of a 4-subset from the set S C. How many subsets of S have two or more elements? d. How many subsets of S have 3 or 4 elements