Posted by **sara** on Tuesday, April 10, 2007 at 4:12pm.

Prove that the union of two finite sets is finite.

Hint: A U B = (A - B) U (B - A) U (A ∩ B)

where U = union and ∩ = intersection

## Answer This Question

## Related Questions

- math - If A is a finite set and B is a proper subset of A, prove that |B| < |...
- Sets - Let A, B, and C be subsets of a universal set U and suppose n(U)=100, n(A...
- Math - sets - Suppose A, B, and C are sets. In at least one of the following ...
- Finite Math - Let A and B be two events in a sample space S such that P(A) = 0.5...
- Grade 11th Maths - This problem is related to Chapter-Sets. Please solve the ...
- Math - ive the numbers of elements in the regions marked I, II, III, IV, V, VI, ...
- math - For the universal set U= {0,1,2,3,4,5,6,7} And the sets A={1,5}, B={1,2,3...
- Grade 11th Maths - (Second Time posting this problem)This problem is related to ...
- Math - Given A = {1, 2, 3}, B = {3, 4, 5, 6,}, and C = {3, 5, 7}. Evaluate each ...
- Math - 1) Given the universal set U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} and sets A...

More Related Questions