Discrete Math Consider the following definition.

Mathematics
Tutor: None Selected Time limit: 1 Day

Consider the following definition.

Definition. An integer n is sane if
3 | (n2 + 2n).
Give a counterexample to the following: All odd integers are sane.

n =

Apr 20th, 2015

n=5
( n^2+2n = 35 )

n = -1
( n^2+2n = -1 )

Apr 20th, 2015

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