Don't answer if you can't answer questions 15-19. Only answer if you can. This question deals with sets and set operations.
Consider the following sets to determine the elements of the following set operations.
Extracted text: C. Consider the followings sets to determine the elements of the following set operations. A = (1,2,3, 4,5} B = (4,5,6,7} C= [5,6,7,8,9} E = (2,4,6,8} %3D %3D D = (1,3,5,7,9} F = (1,5,9) %3D 15. BnD 16. DOE 17. (Bn F) U (Cn E) 18. (An D)-B 19. (A- B)C