Question

A={1,3,5,7,9}
B={2,4,6,8,10}
C={1,5,6,7,9}
A∩{B∩C}=?

my answer: 1,3,5,6,7,9
correct?

Answer 1

The number 1 is NOT in set B, so it can't be in set B∩C

Answer 2

so it can't be in A∩(B∩C)

Answer 3

Then it's an empty set?

Answer 4

yes, B∩C = {6}

but the element 6 is NOT in set A

so A∩{B∩C} = empty set

Answer 5

alright thanks man.

Answer 6

np