Let `A = {1, 2, 3, 4, 6}`. Let R be the relation on A defined by `{(adot b): a , b in A , b`is exactly divisible by a}.(i) Write R in roster form(ii) Find the domain of R(iii) Find the range of R.

Explanation

To solve the problem step by step, we will follow the instructions provided in the question.

### Given:
Set \( A = \{1, 2, 3, 4, 6\} \)

### Relation \( R \):
The relation \( R \) is defined as \( R = \{(a, b) : a, b \in A \text{ and } b \text{ is exactly divisible by } a\} \).

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