Question

If set D is a subset of set E, then which of the following is true?


D ∩ E = D
D ∩ E = E
D ∩ E = Ø

Answer 1

The question is asking about where E and D intersect (overlap)
do they overlap over all of D, nowhere, or over E ?

Answer 2

over e i think

Answer 3

i will give medal and fan

Answer 4

so the two regions I drew completely overlap? because E is the big region, so you are telling me that they overlap on the entire area.

Answer 5

Create an exmple of sets D and E, such that D is a subset of E.

E = {1,3,5,6,8,9}
D = {1,5}

which of the following is true? Look at the choices with respect to sets D and E above. The answer is obvious.

Answer 6

whts the answer

Answer 7

Read my post above.

Answer 8

so is it B

Answer 9

Show your work as to how you got B?

Answer 10

E is a subset of E, therefore in order for D to be a subset, it has to be less than or equal to E

a "proper" subset is strictly "less than"

Answer 11

since { } is a subset of E, if we let D = { }, then DnE = { } as well