If A and B are two sets such that A ⊂ B then what is A ∪ B ?

We know that if all elements of set A are present in B , then A is said to be subset of B denoted by A ⊂ B . We know that the union of A and B is the set which consists of all the elements of A and B . So, A ∪ B will contain all elements of B which automatically contains all elements of A because A is subset of B . Thus A ∪ B will contain elements of B . And we shall write A ∪ B = B . Therefore, B is the correct answer.

If A and B are two sets such that A ⊂ B then what is A ∪ B ?

We know that if all elements of set A are present in B , then A is said to be subset of B denoted by A ⊂ B . We know that the union of A and B is the set which consists of all the elements of A and B . So, A ∪ B will contain all elements of B which automatically contains all elements of A because A is subset of B . Thus A ∪ B will contain elements of B . And we shall write A ∪ B = B . Therefore, B is the correct answer.

E M B I B E

Mathematics Class 10>Chapter 2 - Sets>Exercise>Q 4

MEDIUM

10th Telangana Board

IMPORTANT

Earn 100

If $A$ and $B$ are two sets such that $A \subset B$ then what is $A \cup B$ ?

Important Questions on Sets

MEDIUM

10th Telangana Board

IMPORTANT

Mathematics Class 10>Chapter 2 - Sets>Exercise>Q 5

Let $A = {x : x$ is a natural number $}$ , $B = {x : x$ is an even natural number $}$ , $C = {x : x$ is an odd natural number $}$ and $D = {x : x$ is a prime number $}$ .