Nice question to practice power & roots

[pankajks2010]

Hi,

read this piece by Vivian Kerr on power and roots:
https://www.beatthegmat.com/mba/2011/04/ ... ter-scores

Here's a DS question to practice it further:

Is 1 > |x-1|?

a)(x-1)^2 <= 1
b) x^2-1 > 0

[pankajks2010]

apologies for posting this in the wrong forum!!