Topic: SETS - College Algebra..

Given: A and B are Subsets of U.
A and B are disjoint sets.
n(A) = 150
n(B) = 450
n(U) = 800

Find he following:

1) B∩U
2) B'∪U
3) n(A∩)
4) n(A)
5) n(B'∩U)

please help me.. thanks.

Question

Topic: SETS - College Algebra..

Given: A and B are Subsets of U.
          A and B are disjoint sets.
         n(A) = 150
         n(B) = 450
         n(U) = 800

Find he following:

1) B∩U
2) B'∪U
3) n(A∩)
4) n(A)
5) n(B'∩U)


please help me..  thanks.

anonymous · Answer

$$B\cap U=B$$ since $B$ lives inside of $U$