Lauriecal13
New member
- Joined
- Sep 16, 2017
- Messages
- 1
Determine if A is a subset of B, B is a subset of A or A=B
A:={x∈Z | x is a multiple of 3},
B:={x∈Z | x=21+3y for some y∈Z}
A:={x∈Z | x is a multiple of 3},
B:={x∈Z | x=21+3y for some y∈Z}