If every element of A is also an element of B, which symbol represents the relation?
Answer and explanation
Correct answer: A ⊆ B
By definition, A is a subset of B when every element belonging to A also belongs to B. This relationship is written as A ⊆ B. It does not require A and B to have exactly the same elements; A may be a proper subset of B. The symbol A ∈ B would instead state that the whole set A is one element of B, which is a different claim.
Frequently asked questions
What is the correct answer to this question?
A ⊆ B
Why is this the correct answer?
By definition, A is a subset of B when every element belonging to A also belongs to B. This relationship is written as A ⊆ B. It does not require A and B to have exactly the same elements; A may be a proper subset of B. The symbol A ∈ B would instead state that the whole set A is one element of B, which is a different claim.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Sets. Topic: Equal sets and Subsets.
