Which of the following is equivalent to the complex number i^80?
A) 1
B) i
C)-1
D)-i

the answer is c.

step-by-step explanation:

answer: 3.26019516

step-by-step explanation:

step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

ya