If A = {2, 4, 6, 8}, in which form is A written?
Answer and explanation
Correct answer: Roster form
A set is written in roster form when its individual elements are listed explicitly inside braces and separated by commas. In A = {2, 4, 6, 8}, every element is directly displayed, so this is roster form. Set-builder form would describe the elements through a condition, such as the even numbers less than 10. Therefore option A is correct.
Frequently asked questions
What is the correct answer to this question?
Roster form
Why is this the correct answer?
A set is written in roster form when its individual elements are listed explicitly inside braces and separated by commas. In A = {2, 4, 6, 8}, every element is directly displayed, so this is roster form. Set-builder form would describe the elements through a condition, such as the even numbers less than 10. Therefore option A is correct.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Common Questions. Topic: General chapter practice.
