## If $$an \ne 0$$ and $$n$$ is a positive integer, is $$n$$ odd?

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### If $$an \ne 0$$ and $$n$$ is a positive integer, is $$n$$ odd?

by M7MBA » Fri Jan 14, 2022 9:17 am

00:00

A

B

C

D

E

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If $$an \ne 0$$ and $$n$$ is a positive integer, is $$n$$ odd?

(1) $$a^n + a^{n + 1} < 0$$

(2) $$a$$ is an integer.