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1 markPaper 1 · Multiple choiceComplex Numbers

CAPE Pure Mathematics Unit 2 · May/June 2018 · Paper 1 · Question Q2

The roots of the equation x^2 + 1 = 0 are

  1. (A)x = -1, 1
  2. (B)x = -1, i
  3. (C)x = 1, -i
  4. (D)x = -i, i

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