Question 148032This question is from textbook A survey of mathematics with applications
: Can you please help me?
5. (3 pts) Given U = {18. 19. 20, 21, 22, 23, 24, 25, 26, 27, 28, 29}, A = {21, 23, 25, 27, 29}, and
B = {26, 27, 28, 29}. Find A′ U B′. HINT: Do not skip to the answer. List A′ and B′, then find their Union.
6. (3 pts) Given U = {l, m, n, o, p, q, r, s, t, u, v, w}, A = {l, m, n, o, p, q}, B = {n, o, r, s, v, w}, and
C = {l, m, p, q, r, t}, find (A′ U C′) ∩ B′.
HINT: Do not skip to the answer. List A′ and C′, then find their Union.
Then find B′. Last find the intersection of (A′ U C′) and B′.
7. (3 pts) Set K contains 30 elements, set J contains 46 elements, and 11 elements are common to both sets. Find n ( K U J).
This question is from textbook A survey of mathematics with applications
Answer by oscargut(2103)   (Show Source):
You can put this solution on YOUR website! U = {18. 19. 20, 21, 22, 23, 24, 25, 26, 27, 28, 29}
A = {21, 23, 25, 27, 29}
B = {26, 27, 28, 29}.
A`={18,19,20,22,24,26,28}
B`={18,19,20,21,22,23,24,25}
then
A`UB`={18,19,20,21,22,23,24,25,26,28}
U = {l, m, n, o, p, q, r, s, t, u, v, w}
A = {l, m, n, o, p, q}
B = {n, o, r, s, v, w}
C = {l, m, p, q, r, t}
find (A′ U C′) ∩ B′.
A`={r,s,t,u,v,w}
C`={n,o,s,u,v,w}
A`UC`={n,o,r,s,t,u,v,w}
B`={l,m,p,q,t,u}
(A′ U C′) ∩ B′={t,u}
#(KUJ)=#(K)+#(J)-#(K∩J)=30+46-11=65
|
|
|
