# Find two sets a and b such that a ∈ b and a ⊆ b.

**Solution:**

Let us consider set a ={} and set b ={ {},{1,2} }

Clearly, a belongs to set b as we know the empty set is a subset of every set.

So we can say a **∈** b.

The definition of the subset is that every element of set A should be contained in set B.

Therefore, a ⊆ b.

## Find two sets a and b such that a ∈ b and a ⊆ b.

**Summary:**

The two sets a and b such that a ∈ b and a ⊆ b are {} and { {},{1} } respectively.

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