Question

Which of the following is correct?

विकल्प

• Ø ⊆ {a, b}

• Ø ∈ {a, b}

• {a} ∈ {a, b}

• a ⊆ {a, b}

Answer 1

Ø ⊆ {a, b}

Explanation;

Hint:

‘Q’ is a subset of every set.