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Simplify the complex number i^28 as much as possible.
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Simplify the complex number i^28 as much as possible.

User Bojangles
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let's recall that i⁴ = 1 so then
i^(28)\implies i^(4\cdot 7)\implies (i^4)^7\implies (1)^7\implies 1

User Mifin
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