Complex number doubt

Question

The continued product of the four values of (cos π/3  + isin π/3)^3/4 = 

1. 1

2. 1-i√3

3. 1+i√3

4. None of these

Answer 1

(cos π/3 + i sin π/3)^3/4

(cos π + i sin π)^1/4

 

(cos π/4 + i sin π/4) = ?

(cos 3π/4 + i sin 3π/4) = ?

(cos 5π/4 + i sin 5π/4) = ?

(cos 7π/4 = i sin 7π/4) = ?

 

What is the continued product?