SOLUTION: Can you please help me, have difficulty with question: Write following complex number in rectangular form and sketch their representation in Argand diagrams; 4 cis 120°

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Question 963561: Can you please help me, have difficulty with question: Write following complex number in rectangular form and sketch their representation in Argand diagrams; 4 cis 120°
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
4 cis 120° = 4cos(120) + 4i*sin(120)
= -2 + 2i*sqrt(3)