Sets with Union, Intersection

Flashcard
•
Mathematics
•
11th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the definition of a set?
Back
A set is a collection of distinct objects, considered as an object in its own right.
2.
FLASHCARD QUESTION
Front
What does the symbol '∩' represent in set theory?
Back
The symbol '∩' represents the intersection of two sets, which is the set of elements that are common to both sets.
3.
FLASHCARD QUESTION
Front
What does the symbol 'U' represent in set theory?
Back
The symbol 'U' represents the union of two sets, which is the set of all elements that are in either set.
4.
FLASHCARD QUESTION
Front
If A = {1, 2, 3} and B = {2, 3, 4}, what is A ∩ B?
Back
A ∩ B = {2, 3}.
5.
FLASHCARD QUESTION
Front
If A = {1, 2, 3} and B = {2, 3, 4}, what is A U B?
Back
A U B = {1, 2, 3, 4}.
6.
FLASHCARD QUESTION
Front
What is the difference between union and intersection?
Back
Union combines all unique elements from both sets, while intersection includes only the elements that are present in both sets.
7.
FLASHCARD QUESTION
Front
If A = {x | x is an even number} and B = {x | x is a prime number}, what is A ∩ B?
Back
A ∩ B = {2}, since 2 is the only even prime number.
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