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Complex numbers

Math · Precalculus

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About this practice set

Complex numbers is part of Math (Precalculus). Questions are generated with new numbers each time you practise. Levels available: Easy, Hard. After you answer, an explanation is shown.

Example questions

A taste of what you will practise. Answers are revealed after you try.

  • Easy

    What is the real part of (3 + 6i)(6 + 3i)?

  • Hard

    What is the real part of (6 + i)(2 + 4i)?