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Activity 1.

Which of the following sets are well-defined and not well-defined

1. The set of red bag.

2. The set of all factors of 18.

3. The set of friendly people.

4. The set of senior citizen.

5. The set of all multiple of 10.

Activity 2.

Identify whether each set is equal or equivalent.

1. A = {r,e,a,d},B = {d,e,a,r}

2. C = {m,a,t,h},D = {g,e,o,m}

3. E = {1,3,4}, F = {4,3,1}

4. G = {1,5,8}, H = {6,5,3}

5. I = {9,10,11}, J = {9,10,11}

Activity 3

Given:

U={0,1,2,3,4,5,6,7,8,9}

A = {1,2,3,4,5,6}

B = {2,4,5,6}

1.A∩B =

2.A∪C =

3.B’ =

Direct answer...sa papel i sulat.. Thank u