If \( n \) is a positive integer, then which of the \( \mathrm{P} \...

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If \( n \) is a positive integer, then which of the
\( \mathrm{P} \) following relations is false:

W
(1) \( i^{4 n}=1 \)
(2) \( i^{4 n-1}=i \)
(3) \( i^{4 n+1}=i \)
(4) \( i^{-4 n}=1 \)
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