Question

Write the following sets in the set-builder form:

(3, 6, 9, 12}

Answer 1

Answer:

Here the element of the set can be disintegrated as

3 = 3 × 1

6 = 3 × 2

9= 3 × 3

12 = 3 × 4

The set in the set-builder form is

A= {x:x=3n where n∈N and 1≤n ≤4}

JAI SHREE KRISHNA

Answer 2

Answer:

{x:x€z and x is multiple of 3 and less than 13}