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OpenStudy (anonymous):
PLEASE HELP MEEE suppose n is an integer. select all statements below that are true: n^2 + n is always an even integer n^2 + n is always an even integer when n is even n^2 + n is always an even integer when n is odd n^2 + n is never an even integer when n is odd n^2 + n is never an even integer n^2 + n is sometimes an even integer
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OpenStudy (anonymous):
An integer is a positive or negative whole number , including zero.
OpenStudy (anonymous):
I like these statements, but they involve using inductive reasoning to prove
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