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  • 2016 December(74H) Math Question 57

    Number Types & Properties

    - Complex Number

    Choice D
    57. What is the distance, in coordinate units, between 2 + 6i and —4 + 3i in the complex plane?

    The complex plane is shown below.

    With the coordinates A (-4, 3i), C(2, 6i), the distance between A and C is simply b=BC2+AB2=32+62=45

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