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14 May, 08:46

If i = √-1 what is the value of i^3

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  1. 14 May, 11:57
    0
    Square both sides

    i = sqrt (-1)

    i^2 = [ sqrt (-1) ]^2

    i^2 = - 1

    Now multiply both sides by i

    i^2 = - 1

    i*i^2 = i (-1)

    i^3 = - i

    Final Answer: - i

    (this is negative i)
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