Question

Express the complex number in trigonometric form.

-6i

Answer 1

6(cos 0° + i sin 0°)

6(cos 270° + i sin 270°)

6(cos 180° + i sin 180°)

6(cos 90° + i sin 90°)

Answer 2

might be easier just to graph it as (0,-6) and compare it

Answer 3

yeah i did that but how do you compare it?