Need help on sets

[Samii]

how to know which sets are shaded ?

 

[karthik]

how to know which sets are shaded ?

That depends on the question

 

[Samii]

i know but i cant work out any of those questions ! that one for example

 

[XPFMember]

these ones r simple!! see the part which is not shaded is AUB so u need the shaded ,so it will be the compliment of AUB !!
in the second case u can see AnB isn't shaded ...similarly when the rest is shaded compliment of AnB is the result!!