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Evaluate the following: \ (-sqrt(-1))^(4...

Evaluate the following: `\ (-sqrt(-1))^(4n+3), ninNN`

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Given `\ (-sqrt(-1))^(4n+3), ninNN`
`=>(-i)^(4n+3)`
`=>(-i)^(4n)(-i)^3`
`=>1**(-i)^3`
`=>i`
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