Question

11. If A and B are two sets such that ASB then find:
(i) AUB
(ii) ANB
(iii) A-B
​

Answer 1

Answer:

AUB

Step-by-step explanation:

(i) A ∩ B.

* Since, A ∩ B denotes A intersection B. Common elements of A and B consists in this set.

*Given as A ⊂ B, every element of A are already an element of B.

*∴ A ∩ B = A.

*(ii) A ⋃ B.

*Since, A ∪ B denotes A union B. ...

*Given as A ⊂ B, B is having all elements including elements of A.

*∴ A ∪ B = B.