a)
D₃₂={1, 2, 4, 8, 16, 32}
M₂ ={2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, ...}
D₃₂∩M₂ = {2, 4, 8, 16, 32}
b)
D₁₅={1, 3, 5, 15}
D₄₅={1, 3, 5, 15, 30}
D₁₅∪D₄₅={1, 3, 5, 15, 30}
c)
D₃₆={1, 2, 3, 4, 6, 9, 12, 18, 36}
M₆={6, 12, 18, 24, 30, 36}
D₃₆\M₆={1, 2, 3, 4, 9}
d)
∅∩M₃₀=∅
e)
D₄₂={1, 2, 3, 6, 7, 14, 21, 42}
M₁₁={11, 22, 33, 44, ...}
D₄₂∩M₁₁=∅
f)
M₁₄={14, 28, 42, 56, 70, 84, 98, 112, 126, ..., 294, ...}
M₂₁={21, 42, 63, 84, 105, ..., 294, ...}
M₁₄∪M₂₁={294*n | n∈Ν}
