Question

Write the following set in set builder form... {3,6,9,12}​

Answer 1

Step-by-step explanation:

you add 3all digit

3+3 =6

6+3=9

9+3=12

12+3=15

Answer 2

Step-by-step explanation:

3 = 3*1

6 = 3*2

9 = 3*3

12 = 3*4

{x: x = 3n, n ∈ N and 1 ≤ n ≤ 4}