Question

Write in roster form. {x:x = 3n, n ∈ N and n < 5​

Answer 1

Answer:

{3,6,9,12}

Step-by-step explanation:

here, n belongs to natural number but less than 5

so if we put n= 1

3(1)=3

and if we put n= 2

3(2)= 6

and if we put n=3

3(3)= 9

if we put n=4

3(4)= 12

we cannot put 5 because it is given that the natural number should be less than 5

so our final answer will be {3,6,9,12}

hope it will help you