Question 1
Which complex number in polar form is represented by the point \(z\) shown on the Argand diagram?
Worked answer
🔒 Start free to see full answer
Specialist Mathematics · Unit 2 · Complex arithmetic and algebra · Complex arithmetic using polar form
Sketch and use complex numbers in polar form as polar coordinates. Specialist Mathematics 2025 v1.4
Practise this objective
AI-marked practice questions tied to QCAA mark schemes for this exact LO. Free to start.
Start free practicePractice questions for this objective
Full questions, answers and worked solutions unlock when you start a free practice session.
More in Complex arithmetic using polar form
← Previous
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)
Next →
Understand and use multiplication, division of complex numbers in polar form and the geometric interpretation of these. 𝑧1 𝑧2 = 𝑟1 𝑟2 cis(𝜃1 + 𝜃2) 𝑧1 𝑧2 = 𝑟 1 𝑟 2 cis(𝜃1 − 𝜃2)