Question

Simplify

Answer 1

\[Smplfy \times i^2\]

Answer 2

the answer
i

−1

−i

1

Answer 3

oh, you meant \[i^{38}\]

Answer 4

yes

Answer 5

\[\huge\color{red}{i^{4n}=1}\]\[\huge\color{red}{i^{(4n+1)}=i}\]\[\huge\color{red}{i^{(4n+2)}=i^2}\]\[\huge\color{red}{i^{(4n+3)}=-i}\]

see?
38=4n+?
36+3=4n+?
36 and 4n cancel
n=3
So it's -i

Answer 6

it not -1

Answer 7

-1=i^2
-1 times i= i^2 times i which is -i=i^3

Answer 8

thank u

Answer 9

Anytime!