Problem-29

Problem-29

Suppose that A={5,8,9}, B={5,9}, C={8,9}, and D={8,9,10}. Determine which of these sets are subsets of which other of these sets.

a) A⊆

b) B⊆

c) C⊆

d) D⊆

 

Solution

a) A⊆

A

 

b) B⊆

A , B

 

c) C⊆

A , C , D

 

d) D⊆

D