Let S = {a, b,f,g, i, k, m, q, t} . (1) How many subset of S have exactly 3 elements? (2) How many subset of S have exactly 3 elements and one of the elements must be a? (3) How many subset of S have exactly 3 or 4 elements?
Let S = {a, b,f,g, i, k, m, q, t} . (1) How many subset of S have exactly 3 elements? (2) How many subset of S have exactly 3 elements and one of the elements must be a? (3) How many subset of S have exactly 3 or 4 elements?
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter1: Fundamentals
Section1.5: Permutations And Inverses
Problem 3E
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