Question

Represent the following sets in the
set-builder form

A = {3,6,9,12,15,18}

ans: A = { x:x £N, x is a multiple of 3, 1<x<20}

Is this correct?​

Answer 1

Answer:

yes it is

Step-by-step explanation:

x:x is natural number which is a multiple of 3 ,where, x lies between 1 and 20