Question

Express the complex number in trigonometric form.

-4

4(cos 270° + i sin 270°)

4(cos 90° + i sin 90°)

4(cos 0° + i sin 0°)

4(cos 180° + i sin 180°)

Answer 1

@03453660

Answer 2

@cwrw238

Answer 3

cos 180 = -1 and sin 180 = 0

so which one is it?

Answer 4

im not sure...

Answer 5

last choice

-4 = 4(-1 +0.i)

Answer 6

THE LAST ONE

Answer 7

4(cos 180° + i sin 180°)

Answer 8

yep