Questions on Logic: Finite and infinite sets answered by real tutors!

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Question 148071: {x|x is a letter of the word SEEDED} ∩ {x|x is a letter of the word DRESSED}=
a. {S, E, D}
b. {D, R, S}
c. {D, R, E, S}
d. {E}: {x|x is a letter of the word SEEDED} ∩ {x|x is a letter of the word DRESSED}=
a. {S, E, D}
b. {D, R, S}
c. {D, R, E, S}
d. {E}
Answer by oscargut(682) About Me  (Show Source):
You can put this solution on YOUR website!
{x|x is a letter of the word SEEDED} ∩ {x|x is a letter of the word DRESSED}=
{S,E,D}∩{D,R,E,S}={S,E,D} (option a)