Question

Pre-Calc HELP MEDAL @SolomonZelman

Answer 1

http://www.wolframalpha.com/input/?i=i%5E%281%2F4%29

Answer 2

why would you not leave it as a 4th root of i though... I would, but that is just me.

Answer 3

\[\frac{1}{i^4}=\frac{1}{(i^2)^2=}\\=\frac{1}{(-1)^2}=1\]

Answer 4

None of those are answer choices.

Answer 5

nevermind, the wolfralpha did give me cos(pi/8) + i sin(pi/8), which I can convert to standard form, which is answer choice b.