Let A = { a, b }, B = {a, b, c}. Is A ⊂...

Let `A = { a, b }, B = {a, b, c}`. Is `A ⊂ B` ? What is `A ∪ B` ?

Verified by Experts

The correct Answer is:

Yes, `A ∪ B = { a, b, c }`

Similar Questions

Explore conceptually related problems

Let A = { a, e, i, o, u} and B = { a, b, c, d} . Is A a subset of B ? No. (Why?). Is B a subset of A? No. (Why?)

Let A ={1, 2}, B = {3, 4} and C = {4, 5}. Then (A-B) xx (B-C) is

Let A = {1, 2, 3} and R = {(a,b): a,b in A, a divides b and b divides a}. Show that R is an identity relation on A.

Let A = ( a, b, c) and R = {(a, a), (b, b), (a, b), (b, a), (b, c)} be a relation on A, then R is

Let A = {3,5}, B = {7,1}. Let R = {(a,b): ainA, binB, a-b is even}. Show that R is an universal relation from A to B.

Let A and B be sets. If A ∩ X = B ∩ X = φ and A ∪ X = B ∪ X for some set X, show that A = B .

Let A, B, and C be the sets such that A ∪ B = A ∪ C and A ∩ B = A ∩ C . Show that B = C .

If A={a,b,c}, B={b,c,d} and C={a,d,c} , then (A-B)xx (B nn C)=

Let A, B and C be three sets. If A ∈ B and B ⊂ C , is it true that A ⊂ C ?. If not, give an example.