- #1
ZedCar
- 354
- 1
Homework Statement
Plot 3e^(-i5∏/3) on an Argand Diagram
The Attempt at a Solution
Re(e^iθ) = cosθ = cos(-5∏/3) = 1/2
Im(e^iθ) = sinθ = sin(-5∏/3) = √3 / 2
So I'd go along the x-axis to 1/2 and then upwards in the y-direction to √3 / 2 and plot the point there.
Is this the way you would go about doing this question, or some other method?
Is my answer correct?
Thanks!
P.S. I think I'm supposed to multiply by 3, but at what point do I do this? Exactly what is it that I should multiply by 3?
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