Math - U is the set of all positive integers less than or equal to 12. A,B and C are subsets of?

Question

...  U
A={1,2,3,4,5,6}
B={odd integers}
C={5,6,8}
Write down the number of elements in AnC

Answer

Write down the number of elements in AnC

The meaning of "n" in "AnC" is not clear. I assume, you introduced n as the binary or dyadic intersection-operator in set theory.
If this is so, and
A={1,2,3,4,5,6} and C={5,6,8}
then 
A n C = {5, 6}

If this is not so, please clarify your question.

Math - U is the set of all positive integers less than or equal to 12. A,B and C are subsets of?

Answers (1)