Question

given these sets:
A={1,2,3,4}
B={3,4,5,6,7}
C={3,5,7,9}
List the elements of this set:
B ∪ (A∩C)
dude i am totally lost on this one

Answer 1

A∩c={3}
B={3,4,5,6,7}
D=B ∪ (A∩C)={3}

Answer 2

sorry!
D=B ∪ (A∩C)=B={3,4,5,6,7}

Answer 3

see now i thought the answer would be\[\left\{ 4,5,6,7 \right\} \in B \cup \left( A ∩intersection B \right)\]

Answer 4

but {3} is also included as an element correct?