**(i)** Right answer is True

**Explanation:-**

1 belongs to the given set {1, 2, 3} as it is present in it.

**(ii)** Right answer is False

**Explanation:-**

Since, a is an element and not a subset of a set {b, c, a}

**(iii)** Right answer is False

**Explanation:-**

Since, {a} is a subset of set {b, c, a} and not an element.

**(iv)** Right answer is True

**Explanation:-**

We do not repeat same elements in a given set.

**(v)** Right answer is False

**Explanation:-**

Given, x+8 = 8

i.e. x = 0

So, the given set is a singleton set {0}. Where it is not a null set.

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