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11. Graphing Complex Numbers

11. Graphing Complex Numbers / Polar Form of Complex Numbers / Problema 4

Problema 4

Express the given complex number in rectangular form. Write your answer in one decimal place, if necessary.
18(cos 30° + i sin 30°)

A

9√3 + 9i

B

18√3 + 18i

C

36√3 + 36i

D

9 + (9√3)i