Problema Solution

Find the cardinal number of the indicated set. Use the cardinal number formula.

If n(A) - 6, n(B) -13 and n(A n B) -4, what is n(A u B)?

Answer provided by our tutors

Find the cardinal number of the indicated set. Use the cardinal number formula.

If n(A) - 6, n(B) -13 and n(A n B) -4, what is n(A u B)?

AuB = A + B+ (AnB)

=6+13-4

=15