Which number belongs to the interval (-1, 1)?
Answer and explanation
Correct answer: 0
The interval (-1, 1) is an open interval, so it contains all real numbers strictly greater than -1 and strictly less than 1. The endpoints -1 and 1 are excluded because parentheses are used. The number 0 lies between these endpoints, so it belongs to the interval. The numbers 1, -1, and 2 do not satisfy the required strict bounds.
Frequently asked questions
What is the correct answer to this question?
0
Why is this the correct answer?
The interval (-1, 1) is an open interval, so it contains all real numbers strictly greater than -1 and strictly less than 1. The endpoints -1 and 1 are excluded because parentheses are used. The number 0 lies between these endpoints, so it belongs to the interval. The numbers 1, -1, and 2 do not satisfy the required strict bounds.
Which subject and chapter does this question cover?
This is a Class 12 Mathematics question. Chapter: Linear Inequalities. Topic: representation on number line.
