Homework Help: math

Posted by Arica on Wednesday, September 2, 2009 at 8:49pm.

Which of the following sets are equal?
A = {n € Z : |n| < 2}
B = {n € Z : n^3 = n}
C = {n € Z : n^2 ≤ n}
D = {n € Z : n^2 ≤ 1}
E = {-1, 0, 1}

I think that A = E, B = E, and D = E, but I am not sure.

math - MathMate, Wednesday, September 2, 2009 at 9:09pm
All correct!

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