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Practice: Cube Roots of Unity

Find all the values of 𝑧 for which 𝑧=1.

  • A1,𝜋2+𝑖𝜋2cossin, cossin𝜋2+𝑖𝜋2
  • B1,𝜋3+𝑖𝜋3cossin, cossin2𝜋3+𝑖2𝜋3
  • C1,2𝜋3+𝑖2𝜋3cossin, cossin2𝜋3+𝑖2𝜋3
  • D1,𝜋3+𝑖𝜋3cossin, cossin𝜋3+𝑖𝜋3
  • E1,𝜋3+𝑖𝜋3cossin, cossin2𝜋3+𝑖2𝜋3

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