A={3,4,5,6,7,8,9} B={4,6,8,10}

Question

C={8,9,10,11}
find the indicated set if A�¿B and AUBUC

Answer 1

is that supposed to say A AND B ?
if so then A AND B = {4,6,8}

A U B U C = {3,4,5,6,7,8,9,10,11)

Answer 2

AuBuC={3,4,5,6,7,8,9,10,11,}