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

Convert between Cartesian form and polar form.

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Express a complex number in Cartesian form 𝑧 = 𝑎 + 𝑏𝑖 and polar form. 𝑧 = 𝑟 (cos(𝜃) + 𝑖 sin(𝜃)) or 𝑧 = 𝑟 cis(𝜃)
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