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22 June, 08:40

1. z^2 = 1

√{ } = √{ }

z = ± { }

The solutions are { } and { }

+5
Answers (1)
  1. 22 June, 09:18
    0
    The answers are 1 and - 1

    Step-by-step explanation:

    Equation

    z² = 1

    √z = √1

    z = ± 1

    z₁ = 1 z₂ = - 1
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