Question

50 POINTS!

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°)


Express the complex number in trigonometric form.

-2i

2(cos 180° + i sin 180°)
2(cos 90° + i sin 90°)
2(cos 270° + i sin 270°)
2(cos 0° + i sin 0°)

Answer 1

-2 and -2i

Explanation:

Answer 2

First question: -2

Answer: 2(cos 180° + i sin 180°)

2(-1 + i 0) = -2

Second question: -2i

Answer: 2(cos 270° + i sin 270°)

2(0 + i (-1)) = -2i