Question

n
10. Prove that((-1-i√3)/2)^n+((-1-i√3)/2)^n

is equal to
(i) 2 if n is a multiple of 3
​

Answer 1

helooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo

Step-by-step explanation:

helooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo