# Basics of Sets and Relations #1

# Basics of Sets and Relations #1

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

Suryakumar007 + 1 comment write exactly the correct integer. If the answer is 5 just type, 5 Click submit code don't hit run code. that's it

sitaramjune3 + 0 comments it was not working

LeoTM + 0 comments The

**union**of two sets is the set of elements which are inset (8).*either*The

**intersection**of two sets is the set of elements which are insets (5).*both*

nikhil_tirpude31 + 0 comments the answer is 8 you have to input the number 8 on the first line of the window else it shows an error

Shivam_S1 + 0 comments Gangsters You'll need to Enter the answer in Editor As well as in custom input

shahnawaz_jrw + 1 comment Answer is: 8

anuj85500 + 0 comments [deleted]

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!

pathivee27 + 1 comment I don't know how to write answer to the query. I know how to do mathematically but how to write here.

saurabhpansare11 + 0 comments They simply ask for number of elements in A U B

ijadou + 0 comments You i started to doupt everything around me, I know the result is 8, but when i submitted it showing "Wrong answer" ...

after a while, i was submitting the number with an extra space that made the answer wrong ..

so ((8) != (8 )) .. apparently ...

you know it is reallly ironic that your website teach programming, and you don't know about the trim() method ..

soni3164 + 0 comments No sample test-cases for this question. Please test your code against custom input.

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