Mathematics

# can someone help?  If 3∈A and 3B, then which of the following statements is not true? A: 3 is an element of B complement. B: 3 is an element of A∪B. C: 3 is an element of A∩B.

$3\in A\ \wedge\ 3\notin B\ then:\\\\A\ is\ true\\\\B\ is\ true\\\\B\ is\ not\ true\ because\ if\ 3\in A\ \wedge\ 3\notin B\ then\ 3\in A\ \wedge\ 3\in B$