Math Problem Statement
Find the value of n(A) if
n(B)equals=3737,
n(A
intersect∩
B)equals=1414,
and n(A
union∪
B)equals=6060.
Solution
To find the value of , we can use the formula for the union of two sets:
We are given:
Substituting the known values into the formula, we have:
Simplify:
Subtract 23 from both sides:
Therefore, the value of is:
Would you like further details or have any questions about this solution?
Here are 5 related questions:
- What is the formula for the intersection of two sets if all other values are known?
- How do you find the number of elements in the complement of a set?
- Can this method be used for more than two sets? If so, how does it change?
- What does represent in set theory?
- How would you find using the given information?
Tip: When solving problems involving sets, drawing a Venn diagram can be very helpful to visualize the relationships and intersections between sets.
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Math Problem Analysis
Mathematical Concepts
Set Theory
Union of Sets
Intersection of Sets
Formulas
n(A ∪ B) = n(A) + n(B) - n(A ∩ B)
Theorems
Principle of Inclusion-Exclusion
Suitable Grade Level
Grades 7-9
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