1. Which of the following sets is well-defined? A. The set of good teachers B. The set of interesting books C. The set of popular TV series. D. The set of female presidents of the Philippines 2. How will you write the elements in E = (the distinct letters in the word " DOL^ = ? E=\ overline S ,C,H,O,O,L\ E=\ 8,C,H,O,L\ 3. Let W = the days of the week). What E=\ S,C,H.L\ E=\ O\ is the C.7 cardinality of set A 1 W? D. 12 D.8 4. Consider A=\ t,u,n\ How many subsets does it have? A1 B.3 5. Which of the following is NOT a subset of the given set E=\ 2,4\ C. (2) 2.(2,4) ) D. E 6. In the operations of sets, what is the symbol for union? A.n C.U B. C For items 7 and 8. Let U=\ 0,1,2,3,4,5,6\ ,A=\ 1,3,5\ ,B=\ 0,2,4,6\ and C=\ 3.6\ 7. What is B u c? A (3.61 8. What is An Bn C? A () 9. B. \ 0,2,4,6\ B \ 3,6\ what is C \ b,c,d\ D^ prime ? cong\ 0,2,3,4,6\ C. \ 0,1,2,4,5\ If U = (a, b, c, d, e) and D=\ u,e\ B. (a, e) A. () 10. Which set notation represents the shaded region? A. AUB B. A cap B D. \ a,b,c,d,e\ D. [0,1,2,3,4,5,6\ B - A D. \ 0,1,2,3,4,5,6\ A - B​