Find the value of I.
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Answer:
By definition, i = the square root of –1, so i2 = –1. If you want i3, you compute it by writing i3 = i2 x i = –1 x i = –i. Also, i4 = i2 x i2 = (–1)(–1) = 1. And then the values of the powers start repeating themselves, because i5 = i, i6 = –1, i7 = –i, and i8 = 1.