Which pair represents equal sets?
Answer and explanation
Correct answer: {a, b} and {b, a}
Equal sets contain exactly the same elements. The sets {a, b} and {b, a} both contain a and b; only the order of writing has changed. In set notation, order is irrelevant. Option A has 3 versus 4, option C has an element versus no element, and option D has an extra 6. Thus only option B shows equal sets.
Frequently asked questions
What is the correct answer to this question?
{a, b} and {b, a}
Why is this the correct answer?
Equal sets contain exactly the same elements. The sets {a, b} and {b, a} both contain a and b; only the order of writing has changed. In set notation, order is irrelevant. Option A has 3 versus 4, option C has an element versus no element, and option D has an extra 6. Thus only option B shows equal sets.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Sets. Topic: The Empty Set, Finite and Infinite Sets, Equal Sets.
