SOLUTION: how do you simplfy i to the 91th power

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Question 88519: how do you simplfy i to the 91th power
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
how do you simplfy i to the 91th power
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i^4 =1 and 91 = 4(22)+3
So i^91 = i^(4*22+ 3) = i^(4*22)*i^3 = 1^22*i^3 = i^3 = -i
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Cheers,
Stan H.