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# The Argand Diagram and Polar form resources

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Multiplication and division in polar form
This leaflet explains how complex numbers in polar form can be multiplied and divided. In polar form, these operations are particularly simple to carry out.(Engineering Maths First Aid Kit 7.6)
The Argand diagram
This leaflet explains how an Argand diagram is used to provide a pictorial representation of a complex number. (Engineering Maths First Aid Kit 7.3)
The Argand Diagram
This leaflet explains how complex numbers can be represented pictorially using an Argand Diagram. There are accompanying videos. Sigma resource Unit 8.
The form r(cos(t) + j sin(t))
This leaflet explains how a complex number can be written in the form z=r(cos(t) + j sin(t)). (Engineering Maths First Aid Kit 7.5)
The modulus and argument of a complex number
This leaflet explains how to calculate the modulus and argument of a complex number. There are accompanying videos. Sigma resource Unit 9.
The polar form
This leaflet explains the polar form of a complex number. It defines the modulus and argument of a complex number. (Engineering Maths First Aid Kit 7.4)
The polar form of a complex number
This leaflet explains what is meant by the polar form of a complex number. There are accompanying videos. Sigma resource Unit 10.

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