Question

Write in set builder form

x={0,3,6,9,12}

Answer 1

I am in class 8 :(

Answer 2

x={x| ∊ N 0 ≤ 3x ≤ 9}

Answer 3

What? :o

Answer 4

consult with the purple guys

Answer 5

You used x such that and belongs to together.

Answer 6

my set-builder notation is kind of rusty

Answer 7

such that x is |x

x={x| x ∊ N, 0 ≤ 3x ≤ 9}

Answer 8

Good :D

Answer 9

N is the natural number 1, 2, 3 etc
where 0 is greater than or equal to 3x and 3x is less than or equal to 9
solving for x is dividing them by 3
so you can say that your range is just 3
0,1,2,3
but your codomain is 0,9
your domain is set of all natural numbers 1,2, 3, etc

Answer 10

@nincompoop I am really sorry about the network issue.

Can you tell me whether these sets are equal?

{1,3,3,3,5,5,5,5,5} ,{5,3,1}