If damping ratio is 0.5, the lines joining complex poles with origin are inclined to negative real axis at

If damping ratio is 0.5, the lines joining complex poles with origin a

1.	If damping ratio is 0.5, the lines joining complex poles with origin are inclined to negative real axis at
A.	± 90°
B.	± 60°
C.	± 45°
D.	± 30°
Answer» C. ± 45°