Question

if a, b are disjoint sets n(a)=10 n(b)=8 the value of n(aub)=​

Answer 1

Answer:

n(aub)= 18

Step-by-step explanation:

since a and. b are disjoint sets

=> if x€ a=> x is not element of b

=> anb = { } null set

=> n(anb) = 0

=> n(aub) = n(a) + n(b) - n(anb)

= 10+8-0

= 18

hope this helps you