Question

Please solve:)

Answer 1

do the usual stuff .. change into trigonometric form, use de Moivre's theorem

Answer 2

1(cos pi/2 + i sin pi/2)^(1/2)

Answer 3

like this:)

Answer 4

have I to convert it into polar form?

Answer 5

i = (cos pi/2 + i sin pi/2)

Answer 6

so it becomes (cos pi/2 + i sin pi/2)^{1/2}.

Answer 7

use de Moive or something like that name theorem

Answer 8

k! so I get