Which of the following describes all values of \(n\) for which \(n^2-1\ge 0.\)

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Which of the following describes all values of \(n\) for which \(n^2-1\ge 0.\)

by M7MBA » Wed Oct 07, 2020 10:19 am

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Which of the following describes all values of \(n\) for which \(n^2-1\ge 0.\)

(A) \(n\ge 1\)
(B) \(n\le1\)
(C) \(0\le n \le 1\)
(D) \(n\le -1\) or \(n \ge 1\)
(E) \(-1\le n\le 1\)

Answer: D

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Source: Beat The GMAT — Problem Solving | Wed Oct 07, 2020 10:19 am

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Scott@TargetTestPrep: GMAT Instructor; Posts: 8086; Joined: Sat Apr 25, 2015 10:56 am; Location: Los Angeles, CA; Thanked: 43 times; Followed by:29 members

Re: Which of the following describes all values of \(n\) for which \(n^2-1\ge 0.\)

by Scott@TargetTestPrep » Fri Oct 16, 2020 5:57 am

M7MBA wrote: ↑
Wed Oct 07, 2020 10:19 am
Which of the following describes all values of \(n\) for which \(n^2-1\ge 0.\)

(A) \(n\ge 1\)
(B) \(n\le1\)
(C) \(0\le n \le 1\)
(D) \(n\le -1\) or \(n \ge 1\)
(E) \(-1\le n\le 1\)

Answer: D