i1 = i
i2 = -1
i3 = i2i = -i
i4 = (i2)2 = 1 = i8 = i12 = ...
So. (5i)4 = 54i4 = 625 = 625 + 0i
David A.
asked 09/02/19Evaluate the power, and write the result in the form a + bi.
(Simplify your answer completely.)
(5i)4
i1 = i
i2 = -1
i3 = i2i = -i
i4 = (i2)2 = 1 = i8 = i12 = ...
So. (5i)4 = 54i4 = 625 = 625 + 0i
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