T T T T F 18. Let A and B be sets then A + B if, and only if A ¢ B and B ¢ A. For sets A, B, and C, if An B = AN C, then B = C. F 19. F 20. For sets A, B, and C, A U (BNC) = (A U B) N (A U C). For sets A, B, and C, A U (BU C) = (AUB) U C. F 21.
T T T T F 18. Let A and B be sets then A + B if, and only if A ¢ B and B ¢ A. For sets A, B, and C, if An B = AN C, then B = C. F 19. F 20. For sets A, B, and C, A U (BNC) = (A U B) N (A U C). For sets A, B, and C, A U (BU C) = (AUB) U C. F 21.
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
ChapterP: Prerequisites
Section: Chapter Questions
Problem 23E
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