Question

Express the complex number in trigonometric form.

-2

2(cos 90° + i sin 90°)

2(cos 0° + i sin 0°)

2(cos 180° + i sin 180°)

2(cos 270° + i sin 270°)

Answer 1

2(cos 0° + i sin 0°) = 2(1) = 2... I think.

Answer 2

its B

Answer 3

That's what I thought it was but I wasn't quite sure. Thank you!!

Answer 4

not a problem(:

Answer 5

I just submitted it and it was wrong :/