Multiplying and Dividing Complex Numbers in Trigonometric or Polar Form

Videos, worksheets, games and acivities to help PreCalculus students learn how to multiply and divide complex numbers in trigonometric or polar form.

 

 

Multiplying Complex Numbers :
Sometimes when multiplying complex numbers, we have to do a lot of computation. Fortunately, when multiplying complex numbers in trigonometric form there is an easy formula we can use to simplify the process. To understand and fully take advantage of multiplying complex numbers, or dividing, we should be able to convert from rectangular to trigonometric form and from trigonometric to rectangular form.

How to multiply two complex numbers in trigonometric form.


 

 

Dividing Complex Numbers :
Sometimes when dividing complex numbers, we have to do a lot of computation. Fortunately, when dividing complex numbers in trigonometric form there is an easy formula we can use to simplify the process. To understand and fully take advantage of dividing complex numbers, or multiplying, we should be able to convert from rectangular to trigonometric form and fromtrigonometric to rectangular form.

How to divide two complex numbers in trigonometric form.

 

 

Complex Numbers: Multiplying and Dividing in Polar Form, Ex 1.
This video gives the formula for multiplication and division of two complex numbers that are in polar form.

 

 

Complex Numbers: Multiplying and Dividing in Polar Form, Ex 2.
This video gives the formula for multiplication and division of two complex numbers that are in polar form.

 

 

Complex Numbers: Dividing - Ex 3.
This video shows how to divide a complex number by another complex number.

 

 

 

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