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26 March, 22:02

Find the product of - 2+2i and its conjugate

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  1. 26 March, 22:17
    0
    8

    Step-by-step explanation:

    The conjugate of - 2 + 2i is - 2 - 2i, hence

    ( - 2 + 2i) ( - 2 - 2i) ← expand factors using FOIL

    = 4 + 4i - 4i - 4i² [ note i² = - 1 ]

    = 4 + 4

    = 8
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