Specialist Mathematics ยท Unit 2 ยท Complex arithmetic and algebra ยท Complex arithmetic using polar form

Understand and use multiplication, division of complex numbers in polar form and the geometric interpretation of these. ๐‘ง1 ๐‘ง2 = ๐‘Ÿ1 ๐‘Ÿ2 cis(๐œƒ1 + ๐œƒ2) ๐‘ง1 ๐‘ง2 = ๐‘Ÿ 1 ๐‘Ÿ 2 cis(๐œƒ1 โˆ’ ๐œƒ2)

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Sketch and use complex numbers in polar form as polar coordinates. Specialist Mathematics 2025 v1.4
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Understand the difference between the argument, arg(๐‘ง), and the principal argument, Arg(๐‘ง) of a non-zero complex number ๐‘ง. arg(๐‘ง) = Arg(๐‘ง) + 2๐œ‹๐‘›, ๐‘› โˆˆ โ„ค
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