asked 18.0k views
2 votes
-2 < [x] ≤ 7. Find x, where [x] is the greatest integer function.

1 Answer

0 votes

Final answer:

The solution to the inequality -2 < [x] ≤ 7 is any real number x that is greater than -1 and less than or equal to 7, as these values satisfy the condition set by the greatest integer function.

Step-by-step explanation:

The student is asking to find the set of real numbers x that satisfy the inequality -2 < [x] ≤ 7, where [x] denotes the greatest integer function or floor function of x. This function gives the largest integer less than or equal to a given number. Since the inequality states that [x] is greater than -2, but less than or equal to 7, we look at the integers that this range includes. These integers are -1, 0, 1, 2, 3, 4, 5, 6, and 7. The corresponding intervals for x will be all the numbers greater than -1 but less than or equal to 7.

Therefore, the solution to the inequality is x > -1 and x ≤ 7. This means any number greater than -1 and up to and including 7 will satisfy the initial inequality.

answered
User DmitryBorodin
by
7.8k points

No related questions found

Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.