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13 November, 05:05

Use square roots to solve the

equation x2 = - 121 over the

complex numbers.

+1
Answers (1)
  1. 13 November, 05:28
    0
    x = ±11i

    Step-by-step explanation:

    x^2 = - 121

    Take the square root of each side

    sqrt (x^2) = sqrt (-121)

    sqrt (x^2) = sqrt (-1) * sqrt (121)

    We know that the sqrt (-1) is i

    x = i (±11)

    x = ±11i
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