2. Given that Z denotes the set of all integers and N the set of all natural numbers, indicate the elements of each of the following sets. a. X = {x € Nx 10 and x is divisible by 3} Y = {x € Z\ x is prime, x < %3D b. %3D 30 and x is divisible by 2} c. Z = {x € Z} x² = 4} 3. Let A = {1, 2, 3, 4} and B = {0,1}. Use the set-roster notation to write each of the following sets and indicate %3D the number of elements that are in each set. a. A x B b. B x A C. AX A For items 4 - 5. Give reasons for your answers. 4. Let B = {2, 4, 6, 8, 10} andC = (4,8, 10} and D = {x} x is even}. a. Is D B? b. Is C D? c. Is CS B? d. is B a proper subset of D? 5. a. Is ((-1)2, 12) = (1², (-1)²)? b. Is (V16,) = (4, 12)? c. Is (–2²,0) = (-V16,0)? %3D %3D %3D
2. Given that Z denotes the set of all integers and N the set of all natural numbers, indicate the elements of each of the following sets. a. X = {x € Nx 10 and x is divisible by 3} Y = {x € Z\ x is prime, x < %3D b. %3D 30 and x is divisible by 2} c. Z = {x € Z} x² = 4} 3. Let A = {1, 2, 3, 4} and B = {0,1}. Use the set-roster notation to write each of the following sets and indicate %3D the number of elements that are in each set. a. A x B b. B x A C. AX A For items 4 - 5. Give reasons for your answers. 4. Let B = {2, 4, 6, 8, 10} andC = (4,8, 10} and D = {x} x is even}. a. Is D B? b. Is C D? c. Is CS B? d. is B a proper subset of D? 5. a. Is ((-1)2, 12) = (1², (-1)²)? b. Is (V16,) = (4, 12)? c. Is (–2²,0) = (-V16,0)? %3D %3D %3D
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter1: Fundamentals
Section1.4: Binary Operations
Problem 9E: 9. The definition of an even integer was stated in Section 1.2. Prove or disprove that the set of...
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