Question

{X:X is multiple of 3 or 5 }in roaster form

Answer 1

Step-by-step explanation:

{3,5,6,9,10,12,15,18,20,.......}

Here, the numbers are multiple of 3 and 5

and it's infinite set

Hope You Got

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Answer 2

Step-by-step explanation:

{3,5,6,9,10,12,15,18,20....}

3 or 5 multiple so it is union of 3 multiple set and 5 multiples set