SOLUTION: i70

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Question 777982: i70
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
i^70

i^(68+2)

(i^68)*(i^2)

(i^(4*17))*(i^2)

(i^4)^17*(i^2)

(1)^17*(i^2)

1*(i^2)

i^2

-1

Answer: -1