Question

please help

Answer 1

u=(11,2,3,4,5,6,7)

a=(1,3,5)

b=(2,5,6,7)

c=(1,2,3,4) d= (5,6,7,2)
what is (b u d)'

Answer 2

the union = (1,2,3,4,5,6,7)

Answer 3

b union of d = (2,5,6,7). They are actually subsets of each other.