I need help with #2.
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Answer:
In mathematics, the intersection A ∩ B of two sets A and B is the set that contains all elements of A that also belong to B (or equivalently, all elements of B that also belong to A), but no other elements. For explanation of the symbols used in this article, refer to the table of mathematical symbols.
We just saw how to join two sets using "Union" (and the symbol ∪). There is also "Intersection" which means "has to be in both". Think "where do they overlap?". The Intersection symbol is an upside down "U" like this: ∩
<h2>Please mark me as brainlyist</h2>it is this because it says to shade b and c so i did that but also it says to shade u and it says u is n and n is a so you shade b c and a
