Lesson: Cube Roots of Unity Mathematics • Third Year of Secondary School

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In this lesson, we will learn how to identify the cubic roots of unity using de Moivre’s theorem.

Students will be able to

find the cube roots of unity and understand the derivation of the formula using de Moivre’s theorem,
plot the cube roots of unity on an Argand diagram and understand the geometric properties of this diagram,
solve problems using the properties of the cube roots of unity,
understand the definition of the primitive cube root of unity.