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# Basics of Sets and Relations #1

# Basics of Sets and Relations #1

shitalb1 + 0 comments Hello there, you just need to enter how many elements are present in the union (AUB). You don't need to list out all. That's the catch :) Hope this helps!

bbkane + 1 comment How can I recommend this to folks who want to learn SQL if the mathmatical operators aren't defined before questions are asked about them. It's pretty hard to google

`set union`

if you've never seen it before... I'd love some more explanation for the math.acme_104 + 0 comments The union of two sets A and B is a set of elements which are in A, B or in both A and B

coder_aky + 0 comments **:-)**`8`

inge_camil + 0 comments in this cases the refers to how many, totally of elements, one or two or three, etc..

raghupviyer + 0 comments they have just asked to specify the number of elements in aUb.....which is 8......aUb means all elements in a and b without repetetion.

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