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CN2 Polar form of a complex number

 

What is a polar complex number? We can identify a complex number on a plane (which is a 2 dimensional space) using rectangular coordinates (e.g. Z = x + Yi ) or we can use polar co-ordinates which involves a length along the x axis followed by an angular rotation θ (e.g. Z=rcisθ).

CN2 Polar form of a complex number (PDF)

What's next... CN3 De Moivre's Theorem