Question

If A = {�−6, −4, −2} and B = {1, 2, 3, �}, what is A ∩ B?

{1, 2, 3, �}

{�−6, −4, −2, 1, 2, 3, �}

{ }

{�−6, −4, −2}

Answer 1

Intersection is the all of the things in both sets. If they have nothing in common then it's just the empty set {}.

Answer 2

Its an empty set. {}

Answer 3

Which of the following is a subset of the set
A: {female children between the ages of 6 and 10}

{a 7 year old child}

{children between the ages of 6 and 8}

{female children 8 years of age}

{female children under 6 years old}