Question

In which quadrant does 8(cos2π/3 + isin2π/3) lie?

Answer 1

General equation

• r(cosØ+isinØ)

On comparing

• Ø=2π/3
• Ø=π-π/3

It lies in Quadrant 2

Answer 2

8(cos2π/3 + isin2π/3)

lie in quadrant II