let w={-4,-3,-2,-1}, x={-2,-1,0,1}
and y={0,1,2} find each of the following
1. w(upside down U) x
2. x(upside down U) y
3. w(upside down U) y
4.w U x
5. w U y

Question

let w={-4,-3,-2,-1}, x={-2,-1,0,1}
and y={0,1,2} find each of the following 
1. w(upside down U) x
2. x(upside down U) y
3. w(upside down U) y
4.w U x
5. w U y

anonymous · Answer

6. $$x \cup \emptyset $$

zepdrix · Answer

$$\large w \cap x$$
So for the `intersection` of the sets $\large w$ and $\large x$,
we want all the elements that are in BOTH $\large w$ and $\large x$.

zepdrix · Answer

Hmm, $\large w$ has a -2.
$\large x$ also has -2.

Understand how that works?
Do they share any other elements?

loser66 · Answer

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