Answer to Question #136302 in Discrete Mathematics for Ryan

Question

Let U = {English, French, History, Math, Physics, Chemistry, Psychology, Drama},
A = {English, Chemistry, French, Psychology},

B = {Math, Physics, History, French, Psychology},
and
C = {Drama, Chemistry, History}.
Find the following.
n[(A ∪ B) ∪ C]

Answer 1

A U B={English, Chemistry, French, Psychology, Math, Physics, History}

(A U B) U C={English, Chemistry, French, Psychology, Math, Physics, History, Drama}

n[(A U B) U C]=8