**(i)** Given that,

{a}

To write the subset of the given sets

A set A is said to be a subset of B if every element of A is also an element of B

A ⊂ B if a ∈ A,a ∈ B

Subsets of {a} are Φ and {a}

**(ii)** Given that,

{a, b}

To write the subset of the given sets

A set A is said to be a subset of B if every element of A is also an element of B

A ⊂ B if a ∈ A,a ∈ B

Subsets of {a, b} are Φ {a}, {b}, and {a, b}.

**(iii) **Given that,

{1, 2, 3}

To write the subset of the given sets

A set A is said to be a subset of B if every element of A is also an element of B

A ⊂ B if a ∈ A,a ∈ B

Subsets of {1, 2, 3} are Φ, {1}, {2}, {3}, {1, 2}, {2, 3}, {1, 3}, and {1, 2, 3}.

**(iv) Given that,**

Φ

To write the subset of the given sets

A set A is said to be a subset of B if every element of A is also an element of B

A ⊂ B if a ∈ A,a ∈ B

Subsets of Φ is Φ.

Answered by Abhisek | 1 year agoFind the symmetric difference A Δ B, when A = {1, 2, 3} and B = {3, 4, 5}.