SOLUTION: Topics In Contemporary Math Permutations and Combinations If the universal set U equals open curly brackets l comma m comma n comma o comma p comma q comma r comma s comm

Question 1191456: Topics In Contemporary Math

Permutations and Combinations
If the universal set U equals open curly brackets l comma m comma n comma o comma p comma q comma r comma s comma t comma u comma v comma w comma x comma y comma z close curly brackets has subsets
space A equals left curly bracket z comma y comma x comma w comma v comma u right curly bracket space
B equals left parenthesis x comma w comma v comma t comma s comma r right curly bracket
C equals left curly bracket u comma v comma p comma q comma r right curly bracket
Find the elements in A intersection B intersection C
Answer by CPhill(1959) (Show Source): You can put this solution on YOUR website!
The intersection of sets A, B, and C (A ∩ B ∩ C) contains only the elements that are present in *all three* sets.
* **A = {z, y, x, w, v, u}**
* **B = {x, w, v, t, s, r}**
* **C = {u, v, p, q, r}**
Looking for common elements:
* 'v' is present in all three sets.
* No other elements are shared by all three sets.
Therefore, A ∩ B ∩ C = {v}

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