Question

THE question is BELOW! please help me on this :DD

Answer 1

Just remember , union of 2 sets means taking all the numbers present in 2 sets without repeating them
Eg
A = { 1,2,3,4}
B={3,4,5,6}

A U B = {1,2,3,4,5,6}

Now try on your own :D

Answer 2

so itll be like : {3,6,9,12,15,18,21,24,27,30,33} ?

Answer 3

Yes. I hope you can count the no of elements in the set by yourself :D

Answer 4

oh my GAWD! thank you so much, your a life saver!

Answer 5

Welcome :)