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2 courses
Complex Numbers and Their Algebra
Mathematics · High School (11–12) · Complex Numbers
FreeCh 3 · 1/3
Meet i, write numbers as a + ib, and add, subtract, multiply and divide them. Find powers of i, and the identities that still hold for complex numbers.
3Lessons10Problems2Python Labs1Question Set1Mock Test
The Argand Plane and Quadratic Equations
Mathematics · High School (11–12) · Complex Numbers, Quadratic Equations
FreeCh 3 · 2/3
Picture complex numbers as points, find their modulus and conjugate and what they mean on the plane, then solve quadratic equations with a negative discriminant and find square roots of complex numbers.
3Lessons12Problems2Python Labs1Question Set1Mock Test
Complex Numbers: Deep Dive
Mathematics · High School (11–12) · Complex Numbers
StandardFirst lesson freeExtra course
Beyond the textbook: the polar form, multiplication as a rotation, the cube roots of unity, and loci on the Argand plane, the parts that JEE, A-Level Further Maths and IB Higher Level ask about most, with a full timed paper.
3Lessons11Problems2Python Labs1Question Set1Mock Test
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