Question

Sendo A = (1 2 3 4 5). 8-(3 4 5 6 7)e C-15.6.7.8.9), determine

a)AUB      b)ANC        c)BNC    d)AUBUC   e)ANB  f)AUC
g)BUB   h)ANBNC​

Answer 1

a)AUB= {1, 2, 3, 4, 5, 6, 7, 8, 9, 15}

b)A∩C  = { }    

c)B∩C = { 6, 7}    

d)AUBUC =   { 1, 2, 3, 4, 5, 6, 7, 8, 9, 15}

e)A∩B = { 3, 4, 5}  

f)AUC = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 15}

g)BUB =  {3, 4, 5, 6, 7}

h)A∩B∩C​ =

   { 3, 4, 5} ∩ C=  { }