Let A={1,2,{3,4}}. Which of the following are true and which false? a. 1∈A b. {1}∈A...

Josh Sizemore

Josh Sizemore

Answered

2022-01-06

Let A={1,2,{3,4}}. Which of the following are true and which false?
a. 1A
b. {1}A
c. 3A
d. {3}A
e. {3}A

Answer & Explanation

Heather Fulton

Heather Fulton

Expert

2022-01-07Added 31 answers

a. True (the element 1 is in set A)
b. False (the set which contains the element 1 isn't set A)
c. False (3 alone is not an element of set A)
d. False (The set containing only 3 is not an element of set A)
e. False (3 would have to be an element of set A to male this variant true)
deginasiba

deginasiba

Expert

2022-01-08Added 31 answers

1. T
2. F
3. F
4. F
5. F

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