Question 199637
what is i-100? 
i-100 is just that, or -100 + i
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i to the -100 power?
= 1/(i^100) = 1/1
= 1
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i is the sqrt(-1), so i^4 = 1.
100 = 4*25, so i^100 = (i^4)^25 = 1^25 = 1