MHB Shaded region in terms of set notation

mathlearn
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I'm having trouble in expressing the shaded region in set notation (Thinking)

Many Thanks :)
 

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mathlearn said:
I'm having trouble in expressing the shaded region in set notation (Thinking)

Many Thanks :)
It's the things which are in $B$ but not in $A$. So it is $B-A$.
 


An equivalent statement: B \cap A'
 

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